diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index 8d0f977dddb..25d304bda7f 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -114,7 +114,7 @@ module ts {
             shortName: "w",
             type: "boolean",
             description: Diagnostics.Watch_input_files,
-        },
+        }
     ];
 
     var shortOptionNames: Map<string> = {};