diff --git a/client/package.json b/client/package.json
index c5e0b912354..03966f73744 100644
--- a/client/package.json
+++ b/client/package.json
@@ -37,7 +37,7 @@
     "build-toolshed": "grunt --app=toolshed",
     "jshint": "jshint --exclude='galaxy/scripts/libs/**' galaxy/scripts/**/*.js",
     "build-charts": "webpack -p --config ../config/plugins/visualizations/charts/webpack.config.js",
-    "prettier": "prettier --write --format flow \"galaxy/scripts/{,!(libs)}/*.js\""
+    "prettier": "prettier --write --tab-width 4 \"galaxy/scripts/{,!(libs)}/*.js\""
   },
   "devDependencies": {
     "babel-core": "^6.24.0",