diff --git a/server.py b/server.py
index 8a7fd79..813e6ea 100644
--- a/server.py
+++ b/server.py
@@ -60,6 +60,7 @@ class Collector:
                     status_code=200,
                     headers=self.store[host]['headers'])
             else:
+                print(f"cannot find {host}")
                 return Response(status_code=404)
 
         @self.app.post("/metrics")