diff --git a/app/user_manager.py b/app/user_manager.py
index e7381e621..9bde2860a 100644
--- a/app/user_manager.py
+++ b/app/user_manager.py
@@ -211,7 +211,7 @@ class UserManager():
 
             return path
 
-        @routes.get("/userdata/{file}")
+        @routes.get("/userdata/{file:.+}")
         async def getuserdata(request):
             path = get_user_data_path(request, check_exists=True)
             if not isinstance(path, str):
@@ -219,7 +219,7 @@ class UserManager():
 
             return web.FileResponse(path)
 
-        @routes.post("/userdata/{file}")
+        @routes.post("/userdata/{file:.+}")
         async def post_userdata(request):
             """
             Upload or update a user data file.
@@ -268,7 +268,7 @@ class UserManager():
 
             return web.json_response(resp)
 
-        @routes.delete("/userdata/{file}")
+        @routes.delete("/userdata/{file:.+}")
         async def delete_userdata(request):
             path = get_user_data_path(request, check_exists=True)
             if not isinstance(path, str):