diff --git a/src/compiler/commandLineParser.ts b/src/compiler/commandLineParser.ts
index ae4c751869c..fabc897a355 100644
--- a/src/compiler/commandLineParser.ts
+++ b/src/compiler/commandLineParser.ts
@@ -133,7 +133,7 @@ module ts {
             shortName: "w",
             type: "boolean",
             description: Diagnostics.Watch_input_files,
-        },
+        }
     ];
     
     var shortOptionNames: Map<string> = {};