diff --git a/patchfile.gemspec b/patchfile.gemspec
index b7b752d..a2055c6 100644
--- a/patchfile.gemspec
+++ b/patchfile.gemspec
@@ -1,3 +1,4 @@
+#encoding: utf-8
 $:.push File.expand_path("../lib", __FILE__)
 # Maintain your gem's version:
 require "patchfile/version"