diff --git a/watcher/api/controllers/root.py b/watcher/api/controllers/root.py
index 835b33c65..a2706edbd 100644
--- a/watcher/api/controllers/root.py
+++ b/watcher/api/controllers/root.py
@@ -109,7 +109,7 @@ class RootController(rest.RestController):
         return Root.convert()
 
     @pecan.expose()
-    def _route(self, args):
+    def _route(self, args, request=None):
         """Overrides the default routing behavior.
 
         It redirects the request to the default version of the watcher API
@@ -118,4 +118,4 @@ class RootController(rest.RestController):
 
         if args[0] and args[0] not in self._versions:
             args = [self._default_version] + args
-        return super(RootController, self)._route(args)
+        return super(RootController, self)._route(args, request)