diff --git a/lib/paperclip/attachment.rb b/lib/paperclip/attachment.rb
index 973d914b6..f870ff5f2 100644
--- a/lib/paperclip/attachment.rb
+++ b/lib/paperclip/attachment.rb
@@ -265,7 +265,7 @@ def post_process #:nodoc:
                                                    dimensions,
                                                    format, 
                                                    extra_options_for(name),
-                                                   @whiny_thumnails)
+                                                   @whiny_thumnbails)
         rescue PaperclipError => e
           @errors << e.message if @whiny_thumbnails
         end