diff --git a/main.py b/main.py
index c9ced19..46c7920 100644
--- a/main.py
+++ b/main.py
@@ -70,7 +70,7 @@ async def fastapi_copy_project(source: str, target: str):
 
 @app.get("/isprojectlocked/")
 async def fastapi_is_locked(network: str):
-    return str in lockedPrjs
+    return lockedPrjs.has_key(network)
 
 @app.post("/lockproject/")
 async def fastapi_lock_project(network: str, id: str):