diff --git a/app/helpers/body_trackers_helper.rb b/app/helpers/body_trackers_helper.rb
index 36c2c0c..c568e32 100644
--- a/app/helpers/body_trackers_helper.rb
+++ b/app/helpers/body_trackers_helper.rb
@@ -59,14 +59,15 @@ module BodyTrackersHelper
 
     # ...then rowspans
     single_columns = []
-    spec.each_with_index do |row, i|
-      single_columns.each { |q| row.delete(q) }
+    spec[1..-1].each_with_index do |row, i|
       row.each do |q, span|
-        if span == 1
-          row[q] = -(spec.length - i)
+        # Current span nil and previous span == 1
+        if span.nil? && (spec[i][q] == 1)
+          spec[i][q] = -(spec.length - i)
           single_columns << q
         end
       end
+      single_columns.each { |q| row.delete(q) }
     end
 
     spec