1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/core_ext/logger.rb b/activesupport/lib/active_support/core_ext/logger.rb
index e4df8fe338..22749229a3 100644
--- a/activesupport/lib/active_support/core_ext/logger.rb
+++ b/activesupport/lib/active_support/core_ext/logger.rb
@@ -137,10 +137,10 @@ class Logger
       attr_writer :formatter
       public :formatter=
 
-      alias old_format_datetime format_datetime if method_defined?(:format_datetime)
+      alias old_format_datetime format_datetime
       def format_datetime(datetime) datetime end
 
-      alias old_msg2str msg2str if method_defined?(:msg2str)
+      alias old_msg2str msg2str
       def msg2str(msg) msg end
     end
 end