diff --git a/Commands/Run Script.plist b/Commands/Run Script.plist
index b045fb3..84982d2 100644
--- a/Commands/Run Script.plist	
+++ b/Commands/Run Script.plist	
@@ -5,7 +5,7 @@
 	<key>beforeRunningCommand</key>
 	<string>nop</string>
 	<key>command</key>
-	<string>#!/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
+	<string>#!/usr/bin/env ruby18
 
 require ENV["TM_SUPPORT_PATH"] + "/lib/tm/executor"
 require ENV["TM_SUPPORT_PATH"] + "/lib/tm/save_current_document"
diff --git a/Support/showoutput.rb b/Support/showoutput.rb
index 28bb491..429b72d 100755
--- a/Support/showoutput.rb
+++ b/Support/showoutput.rb
@@ -1,4 +1,4 @@
-#!/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -w
+#!/usr/bin/env ruby18 -w
 #
 #