diff --git a/docker-healthcheck.py b/docker-healthcheck.py
index d421503..b046567 100644
--- a/docker-healthcheck.py
+++ b/docker-healthcheck.py
@@ -36,8 +36,7 @@ def main() -> None:
                     f"Container has status '{container_status}' which is not one of 'healthy' or 'running'"
                 )
         except docker.errors.NotFound:
-            if "self" in checks:
-                requests.post(checks["self"] + "/fail", f"Container '{container_id}' not found.")
+            requests.post(checks[container_id] + "/fail", f"Container '{container_id}' not found.")
 
 
 if __name__ == "__main__":