diff --git a/levels/rename_commit.rb b/levels/rename_commit.rb
index 4c8ecd9..67820f7 100644
--- a/levels/rename_commit.rb
+++ b/levels/rename_commit.rb
@@ -6,6 +6,7 @@
   FileUtils.touch "README"
   repo.add        "README"
   repo.commit_all "Initial commit"
+  system "git branch -m master"
 
   FileUtils.touch "file1"
   repo.add        "file1"