diff --git a/activesupport/lib/active_support/core_ext/date/conversions.rb b/activesupport/lib/active_support/core_ext/date/conversions.rb
index fe08ade7e0273..cdf606f28c6a0 100644
--- a/activesupport/lib/active_support/core_ext/date/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/date/conversions.rb
@@ -17,10 +17,10 @@ class Date
   }
 
   # Ruby 1.9 has Date#to_time which converts to localtime only.
-  remove_possible_method :to_time
+  remove_method :to_time
 
   # Ruby 1.9 has Date#xmlschema which converts to a string without the time component.
-  remove_possible_method :xmlschema
+  remove_method :xmlschema
 
   # Convert to a formatted string. See DATE_FORMATS for predefined formats.
   #