diff --git a/src/apps.json b/src/apps.json
index 27d20dbb6..622e00ca8 100644
--- a/src/apps.json
+++ b/src/apps.json
@@ -7508,7 +7508,7 @@
         12
       ],
       "js": {
-        "Prototype": ""
+        "Prototype.Version": "(.*)\\;version:\\1"
       },
       "icon": "Prototype.png",
       "script": "(?:prototype|protoaculous)(?:-([\\d.]*[\\d]))?.*\\.js\\;version:\\1",