diff --git a/exe/rails5-spec-converter b/exe/rails5-spec-converter
index 7fcd242..7930a61 100755
--- a/exe/rails5-spec-converter
+++ b/exe/rails5-spec-converter
@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 
-$LOAD_PATH.unshift(File.expand_path('../lib', __FILE__))
+$LOAD_PATH.unshift(File.expand_path('../lib', __dir__))
 require 'rails5/spec_converter/cli'
 
 result = Rails5::SpecConverter::CLI.new.run