diff --git a/buildcfg/base.json b/buildcfg/base.json
index b11b1de0e3..6b090a5d14 100644
--- a/buildcfg/base.json
+++ b/buildcfg/base.json
@@ -55,7 +55,7 @@
     "../externs/proj4js.js",
     "../externs/tilejson.js",
     "../externs/topojson.js",
-    "../externs/vbarray.js",
+    "../externs/vbarray.js"
   ],
 
   "level": "VERBOSE",