diff --git a/lib/testing/rspec.rb b/lib/testing/rspec.rb
index 9345fcb..a3623b6 100644
--- a/lib/testing/rspec.rb
+++ b/lib/testing/rspec.rb
@@ -87,7 +87,7 @@ def validate_enum(enum_class, item)
       end
     end
 
-    failure_message_for_should do
+    failure_message do
       message = "should act as enumerated"
       if @items
         message << " and have members #{@items.inspect}"
@@ -95,7 +95,7 @@ def validate_enum(enum_class, item)
       message
     end
 
-    failure_message_for_should_not do
+    failure_message_when_negated do
       message = "should not act as enumerated"
       if @items
         message << " with members #{@items.inspect}"
@@ -131,11 +131,11 @@ def validate_enum(enum_class, item)
       model_class.has_enumerated?(attribute)
     end
 
-    failure_message_for_should do
+    failure_message do
       "expected #{attribute} to be an enumerated attribute"
     end
 
-    failure_message_for_should_not do
+    failure_message_when_negated do
       "expected #{attribute} to not be an enumerated attribute"
     end
 
@@ -166,11 +166,11 @@ def validate_enum(enum_class, item)
       end
     end
 
-    failure_message_for_should do
+    failure_message do
       "expected #{attribute} to match the enum"
     end
 
-    failure_message_for_should_not do
+    failure_message_when_negated do
       "expected #{attribute} to not match the enum"
     end
 
@@ -179,4 +179,4 @@ def validate_enum(enum_class, item)
     end
   end
 
-end
\ No newline at end of file
+end