diff --git a/index.js b/index.js
index 335f0d6..adb4c10 100644
--- a/index.js
+++ b/index.js
@@ -69,7 +69,7 @@ var gulpSass = function gulpSass(options, sync) {
           sassMapFile,
           sassFileSrc,
           sassFileSrcPath,
-          sourceFileIndex
+          sourceFileIndex,
           filteredSources;
 
       // Build Source Maps!