diff --git a/bin/js_features.js b/bin/js_features.js
index c6a4ba07..26f13da7 100755
--- a/bin/js_features.js
+++ b/bin/js_features.js
@@ -138,7 +138,9 @@ function processFile(file) {
 	}
 
 	if (ARGS.extract_features) {
-		console.log(output);
+		if (removeWhitespace(output) != '{"query":[],"assign":[]}') {
+			console.log(output);
+		}
 	} else if (ARGS.rename){
 		callServer(
 			HOST,
diff --git a/extract_features.py b/extract_features.py
index f78a58cd..6862b58f 100755
--- a/extract_features.py
+++ b/extract_features.py
@@ -26,7 +26,7 @@ TMP_DIR = ""
 
 def ExtractFeaturesForFile(f):
   global TMP_DIR
-  os.system("nodejs bin/js_features.js --skip_minified '%s' >> %s/%d" % (f, TMP_DIR, os.getpid()))
+  os.system("nodejs bin/js_features.js --extract_features --skip_minified '%s' >> %s/%d" % (f, TMP_DIR, os.getpid()))
 
 def ExtractFeaturesForFileList(files):
   global TMP_DIR