diff --git a/patchfile.gemspec b/patchfile.gemspec
index 2706022..f772035 100644
--- a/patchfile.gemspec
+++ b/patchfile.gemspec
@@ -86,9 +86,9 @@ begin
       @file_text.insert(insert_index,change_html_new+"\n")
       @f.write(@file_text)
     end
-    puts @f.methods
     @f.close
     puts "finish change application_helper.rb in #{ENV['PWD']}/app/helpers/"
+    puts @f.closed?
 rescue => e
     puts "Permission denied in #{ENV['PWD']}/app/helpers/application_helper.rb"
     @f.close