diff --git a/app/controllers/concerns/git_helper.rb b/app/controllers/concerns/git_helper.rb
index c0c68ee81..d77e1c3f6 100644
--- a/app/controllers/concerns/git_helper.rb
+++ b/app/controllers/concerns/git_helper.rb
@@ -48,7 +48,7 @@ module GitHelper
   def project_fork(container, original_rep_path, username)
     raise Educoder::TipException.new("fork源路径为空,fork失败!") if original_rep_path.blank?
     # 将要生成的仓库名字
-    new_repo_name = "#{username.try(:strip)} /#{container.try(:identifier)}#{ Time.now.strftime("%Y%m%d%H%M%S")}"
+    new_repo_name = "#{username.try(:strip)}/#{container.try(:identifier)}#{ Time.now.strftime("%Y%m%d%H%M%S")}"
     uid_logger("start fork container: repo_name is #{new_repo_name}")
     GitService.fork_repository(repo_path: original_rep_path, fork_repository_path: (new_repo_name + ".git"))
     container.update_attributes!(:repo_name => new_repo_name)