diff --git a/addons/base/controllers/main.py b/addons/base/controllers/main.py
index b572fb6b67c..79de302f069 100644
--- a/addons/base/controllers/main.py
+++ b/addons/base/controllers/main.py
@@ -180,9 +180,12 @@ class Session(openerpweb.Controller):
 
     @openerpweb.jsonrequest
     def modules(self, req):
-        return {"modules": [name
-            for name, manifest in openerpweb.addons_manifest.iteritems()
-            if manifest.get('active', True)]}
+        # TODO query server for installed web modules
+        mods = []
+        for name, manifest in openerpweb.addons_manifest.items():
+            if name != 'base' and manifest.get('active', True):
+                mods.append(name)
+        return mods
 
     @openerpweb.jsonrequest
     def eval_domain_and_context(self, req, contexts, domains,
diff --git a/addons/base/static/src/js/chrome.js b/addons/base/static/src/js/chrome.js
index 96e3db5bfaa..67738d7a348 100644
--- a/addons/base/static/src/js/chrome.js
+++ b/addons/base/static/src/js/chrome.js
@@ -452,7 +452,7 @@ openerp.base.Session = openerp.base.Controller.extend( /** @lends openerp.base.S
     load_modules: function() {
         var self = this;
         this.rpc('/base/session/modules', {}, function(result) {
-            self.module_list = result['modules'];
+            self.module_list = result;
             var modules = self.module_list.join(',');
             if(self.debug || true) {
                 self.rpc('/base/webclient/csslist', {"mods": modules}, self.do_load_css);