lib/rubocop/cop/discourse/time_eq_matcher.rb in rubocop-discourse-3.0 vs lib/rubocop/cop/discourse/time_eq_matcher.rb in rubocop-discourse-3.0.1

@@ -35,10 +35,10 @@
         end
 
         private
 
         def timestamp_suffix?(property)
-          property =~ /_at$/
+          property.is_a?(Symbol) && property =~ /_at$/
         end
 
         def not_nil?(expression)
           !expression.nil_type?
         end