diff --git a/app/models/site/repository.rb b/app/models/site/repository.rb
index a900fea2..1ce10ed5 100644
--- a/app/models/site/repository.rb
+++ b/app/models/site/repository.rb
@@ -162,7 +162,7 @@ class Site
     # @return [Boolean, nil]
     def push
       origin.push(rugged.head.canonical_name, credentials: credentials)
-      git_sh("git", "lfs", "push", "origin", "default_branch")
+      git_sh("git", "lfs", "push", "origin", default_branch)
     end
 
     private