diff --git a/cmd/pinger/main.go b/cmd/pinger/main.go
index 3759a78..679bb59 100644
--- a/cmd/pinger/main.go
+++ b/cmd/pinger/main.go
@@ -251,6 +251,8 @@ func (s S) pingAndRecord(ctx context.Context) error {
 			}
 			if err == nil {
 				conn.Close()
+			} else {
+				log.Println("!", err)
 			}
 		}()
 	}