diff --git a/gns3server/agent/gns3_copilot/skills/manager.py b/gns3server/agent/gns3_copilot/skills/manager.py
index 1a511ec29..3195b4611 100644
--- a/gns3server/agent/gns3_copilot/skills/manager.py
+++ b/gns3server/agent/gns3_copilot/skills/manager.py
@@ -89,7 +89,7 @@ class SkillsManager:
         self.branch = branch
         self.auto_update = auto_update
         self.loader = SkillsLoader(str(local_path))
-        self._repo: Optional["git.Repo"] = None
+        self._repo: Optional[git.Repo] = None
         self._prompt_count = 0
 
         if not GIT_AVAILABLE: