diff --git a/zuul/scheduler.py b/zuul/scheduler.py
index 089e91d..cd954f1 100644
--- a/zuul/scheduler.py
+++ b/zuul/scheduler.py
@@ -706,7 +706,7 @@
             # update per pipeline accepting the change.
             self.log.info("Fetching references for %s" % project)
             url = self.triggers['gerrit'].getGitUrl(project)
-            self.merger.updateRepo(project, url)
+            self.merger.updateRepo(project.name, url)
 
         for pipeline in self.layout.pipelines.values():
             change = event.getChange(project,