diff --git a/src/static/js/linestylefilter.js b/src/static/js/linestylefilter.js
index 757fac5ae..675f19d02 100644
--- a/src/static/js/linestylefilter.js
+++ b/src/static/js/linestylefilter.js
@@ -60,7 +60,7 @@ linestylefilter.getLineStyleFilter = function(lineLength, aline, textAndClassFun
 
   // Plugin Hook to add more Attrib Classes
   hooks.aCallAll('aceAttribClasses', linestylefilter.ATTRIB_CLASSES, function(err, ATTRIB_CLASSES){
-    if(ATTRIB_CLASSES){
+    if(ATTRIB_CLASSES.length >= 1){
       linestylefilter.ATTRIB_CLASSES = ATTRIB_CLASSES[0];
     }
   });