diff --git a/myapp.py b/myapp.py
index b99a10d..e300313 100644
--- a/myapp.py
+++ b/myapp.py
@@ -11,7 +11,7 @@ def index():
 
 lock = threading.Lock()
 def opener(lck):
-    with clk:
+    with lck:
         for _ in range(5):
             requests.get("http://192.168.0.103/open")