diff --git a/configs/client-default.js b/configs/client-default.js
index 9f42185b..550221b9 100644
--- a/configs/client-default.js
+++ b/configs/client-default.js
@@ -702,7 +702,6 @@ module.exports = function(options) {
                 premium: options.project.premium,
             }
         },
-        "plugins/c9.ide.abtesting/abtesting",
         {
             packagePath: "plugins/c9.ide.welcome/welcome",
             staticPrefix: staticPrefix + "/plugins/c9.ide.welcome",