diff --git a/libs/modelParser.js b/libs/modelParser.js
index f312f2528..d0a9b8443 100644
--- a/libs/modelParser.js
+++ b/libs/modelParser.js
@@ -575,8 +575,10 @@ var parseGroup = function (aGroup) {
         group.rating = getRating(aScripts);
       }
 
+      // `aScripts` may change dynamically so check again
       if (aScripts && aScripts.length === 1) {
         group.size = aScripts.length;
+        group.rating = 0;
       }
 
       if (aScripts && aScripts.length === 0) {