diff --git a/services/wiki/wiki.go b/services/wiki/wiki.go
index 5f7d26a04..67ba1abd0 100644
--- a/services/wiki/wiki.go
+++ b/services/wiki/wiki.go
@@ -77,6 +77,8 @@ func InitWiki(repo *models.Repository) error {
 		return fmt.Errorf("InitRepository: %v", err)
 	} else if err = repo_module.CreateDelegateHooks(repo.WikiPath()); err != nil {
 		return fmt.Errorf("createDelegateHooks: %v", err)
+	} else if _, err = git.NewCommand("symbolic-ref", "HEAD", git.BranchPrefix+"master").RunInDir(repo.WikiPath()); err != nil {
+		return fmt.Errorf("unable to set default wiki branch to master: %v", err)
 	}
 	return nil
 }