diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 655bf9b..9216a50 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -73,7 +73,7 @@ module ApplicationHelper
 
     content_tag :div, class: "right" do
       if current_user.at_least(:admin)
-        image_link_to t('.users'), "account-multiple-outline", users_path, class: "tab",
+        image_link_to t(".users"), "account-multiple-outline", users_path, class: "tab",
           current: :active
       end
     end
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 69b2716..14fde5e 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -13,9 +13,10 @@
     <div class="app-menu">
       <% if user_signed_in? %>
         <% if current_user_disguised? %>
-          <%= image_button_to t(:revert), "incognito-off", revert_users_path %>
+          <%= image_button_to t(".revert"), "incognito-off", revert_users_path %>
         <% else %>
-          <%= image_button_to t(:sign_out), "logout", destroy_user_session_path, method: :delete %>
+          <%= image_button_to t(".sign_out"), "logout", destroy_user_session_path,
+            method: :delete %>
         <% end %>
         <%= image_link_to current_user.email, "account-wrench-outline",
           edit_user_registration_path, current: :hide %>
diff --git a/app/views/users/passwords/edit.html.erb b/app/views/users/passwords/edit.html.erb
index e3a1076..b69bf4a 100644
--- a/app/views/users/passwords/edit.html.erb
+++ b/app/views/users/passwords/edit.html.erb
@@ -1,11 +1,11 @@
 <%= tabular_form_for resource, url: user_password_path, html: { method: :put } do |f| %>
   <%= f.hidden_field :reset_password_token, label: false %>
 
-  <%= f.password_field :password, label: t('.new_password'),
+  <%= f.password_field :password, label: t(".new_password"),
     required: true, size: 30, autofocus: true, autocomplete: "new-password",
     hint: ("(#{@minimum_password_length} characters minimum)" if @minimum_password_length) %>
-  <%= f.password_field :password_confirmation, label: t('.password_confirmation'),
+  <%= f.password_field :password_confirmation, label: t(".password_confirmation"),
     required: true, size: 30, autocomplete: "new-password" %>
 
-  <%= f.submit t('.update_password') %>
+  <%= f.submit t(".update_password") %>
 <% end %>
diff --git a/app/views/users/registrations/edit.html.erb b/app/views/users/registrations/edit.html.erb
index 901fb8f..5e67e27 100644
--- a/app/views/users/registrations/edit.html.erb
+++ b/app/views/users/registrations/edit.html.erb
@@ -21,9 +21,9 @@
   <%= f.select :status, User.statuses, readonly: true %>
 
   <%= f.password_field :password, size: 30, autocomplete: "off",
-    hint: t('.blank_password_hint_html',
-            subhint: t('.minimum_length_hint_html', count: @minimum_password_length)) %>
+    hint: t(".blank_password_hint_html",
+            subhint: t(".minimum_length_hint_html", count: @minimum_password_length)) %>
   <%= f.password_field :password_confirmation, size: 30, autocomplete: "off" %>
 
-  <%= f.submit t('.update') %>
+  <%= f.submit t(".update") %>
 <% end %>
diff --git a/app/views/users/registrations/new.html.erb b/app/views/users/registrations/new.html.erb
index fcb196b..432f614 100644
--- a/app/views/users/registrations/new.html.erb
+++ b/app/views/users/registrations/new.html.erb
@@ -3,7 +3,7 @@
   <%= f.password_field :password, required: true, size: 30, minlength: @minimum_password_length,
     autocomplete: "new-password",
     hint: ("(#{@minimum_password_length} characters minimum)" if @minimum_password_length) %>
-  <%= f.password_field :password_confirmation, label: t('.password_confirmation'),
+  <%= f.password_field :password_confirmation, label: t(".password_confirmation"),
     required: true, size: 30, autocomplete: "new-password" %>
 
   <%= f.submit t(:register) %>
diff --git a/app/views/users/sessions/new.html.erb b/app/views/users/sessions/new.html.erb
index 4213a79..2eed7cf 100644
--- a/app/views/users/sessions/new.html.erb
+++ b/app/views/users/sessions/new.html.erb
@@ -3,7 +3,7 @@
   <%= f.password_field :password, required: true, size: 30, autocomplete: "current-password" %>
 
   <% if devise_mapping.rememberable? %>
-    <%= f.check_box :remember_me, label: t('.remember_me') %>
+    <%= f.check_box :remember_me, label: t(".remember_me") %>
   <% end %>
 
   <%= f.submit t(:sign_in) %>
diff --git a/config/environments/test.rb b/config/environments/test.rb
index a7706f5..3593d36 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -52,7 +52,7 @@ Rails.application.configure do
   config.active_support.disallowed_deprecation_warnings = []
 
   # Raises error for missing translations.
-  # config.i18n.raise_on_missing_translations = true
+  config.i18n.raise_on_missing_translations = true
 
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
diff --git a/config/locales/en.yml b/config/locales/en.yml
index fa9fd63..5210532 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -35,13 +35,12 @@ en:
   layouts:
     application:
       revert: Revert
+      sign_out: Sign out
       users: Users
   actions: Actions
   back: Back
   or: or
-  profile: Profile
   register: Register
   sign_in: Sign in
-  sign_out: Sign out
   recover_password: Recover password
   resend_confirmation: Resend confirmation
diff --git a/test/system/users_test.rb b/test/system/users_test.rb
index 96c6904..515296e 100644
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -8,21 +8,21 @@ class UsersTest < ApplicationSystemTestCase
   test "sign in" do
     sign_in
     assert_no_current_path new_user_session_path
-    assert_text t('devise.sessions.signed_in')
+    assert_text t("devise.sessions.signed_in")
   end
 
   test "sign in fails with invalid password" do
     sign_in password: random_password
     assert_current_path new_user_session_path
-    assert_text t('devise.failure.invalid', authentication_keys: User.human_attribute_name(:email))
+    assert_text t("devise.failure.invalid", authentication_keys: User.human_attribute_name(:email))
   end
 
   test "sign out" do
     sign_in
     visit root_url
-    click_on t(:sign_out)
+    click_on t("layouts.application.sign_out")
     assert_current_path new_user_session_path
-    assert_text t('devise.sessions.signed_out')
+    assert_text t("devise.sessions.signed_out")
   end
 
   test "recover password" do
@@ -35,19 +35,19 @@ class UsersTest < ApplicationSystemTestCase
       click_on t(:recover_password)
     end
     assert_current_path new_user_session_path
-    assert_text t('devise.passwords.send_instructions')
+    assert_text t("devise.passwords.send_instructions")
 
     with_last_email do |mail|
       visit Capybara.string(mail.body.to_s).find_link("Change my password")[:href]
     end
     new_password = random_password
-    fill_in t('users.passwords.edit.new_password'), with: new_password
-    fill_in t('users.passwords.edit.password_confirmation'), with: new_password
+    fill_in t("users.passwords.edit.new_password"), with: new_password
+    fill_in t("users.passwords.edit.password_confirmation"), with: new_password
     assert_emails 1 do
-      click_on t('users.passwords.edit.update_password')
+      click_on t("users.passwords.edit.update_password")
     end
     assert_no_current_path user_password_path
-    assert_text t('devise.passwords.updated')
+    assert_text t("devise.passwords.updated")
   end
 
   test "register" do
@@ -57,7 +57,7 @@ class UsersTest < ApplicationSystemTestCase
     fill_in User.human_attribute_name(:email).capitalize, with: random_email
     password = random_password
     fill_in User.human_attribute_name(:password).capitalize, with: password
-    fill_in t('users.registrations.new.password_confirmation'), with: password
+    fill_in t("users.registrations.new.password_confirmation"), with: password
     assert_difference ->{User.count}, 1 do
       assert_emails 1 do
         click_on t(:register)
@@ -65,13 +65,13 @@ class UsersTest < ApplicationSystemTestCase
     end
 
     assert_no_current_path new_user_registration_path
-    assert_text t('devise.registrations.signed_up_but_unconfirmed')
+    assert_text t("devise.registrations.signed_up_but_unconfirmed")
 
     with_last_email do |mail|
       visit Capybara.string(mail.body.to_s).find_link("Confirm my account")[:href]
     end
     assert_current_path new_user_session_path
-    assert_text t('devise.confirmations.confirmed')
+    assert_text t("devise.confirmations.confirmed")
     assert User.last.confirmed?
   end
 
@@ -86,7 +86,7 @@ class UsersTest < ApplicationSystemTestCase
       click_on t(:resend_confirmation)
     end
     assert_current_path new_user_session_path
-    assert_text t('devise.confirmations.send_instructions')
+    assert_text t("devise.confirmations.send_instructions")
 
     with_last_email do |mail|
       visit Capybara.string(mail.body.to_s).find_link("Confirm my account")[:href]
@@ -95,7 +95,7 @@ class UsersTest < ApplicationSystemTestCase
 
   test "show profile" do
     sign_in user: users.select(&:admin?).select(&:confirmed?).sample
-    click_on t('layouts.application.users')
+    click_on t("layouts.application.users")
     within all('tr').drop(1).sample do |tr|
       email = first(:link).text
       click_on email
@@ -107,7 +107,7 @@ class UsersTest < ApplicationSystemTestCase
     user = users.select(&:admin?).select(&:confirmed?).sample
     sign_in user: user
 
-    click_on t('layouts.application.users')
+    click_on t("layouts.application.users")
     all(:link_or_button, text: t("users.index.disguise")).sample.click
     assert_current_path edit_user_registration_path
     # TODO: test for profile app-menu link after root changed to different path
@@ -122,8 +122,8 @@ class UsersTest < ApplicationSystemTestCase
     user = users.select(&:admin?).select(&:confirmed?).sample
     sign_in user: user
 
-    click_on t('layouts.application.users')
-    text = t('users.index.disguise')
+    click_on t("layouts.application.users")
+    text = t("users.index.disguise")
     undisguisable = all(:xpath, "//tbody//tr[not(descendant::*[contains(text(),\"#{text}\")])]")
     within undisguisable.sample do |tr|
       email = first(:link).text
@@ -144,8 +144,8 @@ class UsersTest < ApplicationSystemTestCase
     end
     assert_difference ->{ User.count }, -1 do
       # TODO: accept_confirm when modal dialog is working
-      #accept_confirm { click_on t('users.registrations.edit.delete') }
-      click_on t('users.registrations.edit.delete')
+      #accept_confirm { click_on t("users.registrations.edit.delete") }
+      click_on t("users.registrations.edit.delete")
     end
     assert_current_path new_user_session_path
   end