diff --git a/patchfile.gemspec b/patchfile.gemspec
index e8db3ee..fbab191 100644
--- a/patchfile.gemspec
+++ b/patchfile.gemspec
@@ -88,7 +88,7 @@ begin
     end
     f.close
     puts "finish change application_helper.rb in #{ENV['PWD']}/app/helpers/"
-rescue
+rescue => e
     puts "Permission denied in #{ENV['PWD']}/app/helpers/application_helper.rb"
     f.close
 end