diff --git a/scoped-properties/language-lua.cson b/scoped-properties/language-lua.cson
index 72000f5..b59cf74 100644
--- a/scoped-properties/language-lua.cson
+++ b/scoped-properties/language-lua.cson
@@ -1,4 +1,5 @@
 '.source.lua':
   'editor':
+    'commentStart': '-- '
     'increaseIndentPattern': '\\b(else|elseif|(local\\s+)?function|then|do|repeat)\\b((?!end).)*$|\\{\\s*$'
     'decreaseIndentPattern': '^\\s*(elseif|else|end|\\})\\s*$'