1 files changed, 3 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/deprecation.rb b/activesupport/lib/active_support/deprecation.rb
index d2c6127461..8499ad6e2d 100644
--- a/activesupport/lib/active_support/deprecation.rb
+++ b/activesupport/lib/active_support/deprecation.rb
@@ -13,8 +13,9 @@ module ActiveSupport
                          $stderr.puts callstack.join("\n  ") if debug
                        },
       'development' => Proc.new { |message, callstack|
-                         RAILS_DEFAULT_LOGGER.warn message
-                         RAILS_DEFAULT_LOGGER.debug callstack.join("\n  ") if debug
+                         logger = defined?(::RAILS_DEFAULT_LOGGER) ? ::RAILS_DEFAULT_LOGGER : Logger.new($stderr)
+                         logger.warn message
+                         logger.debug callstack.join("\n  ") if debug
                        }
     }