diff --git a/kernel.go b/kernel.go
index 87e6d42..1aa24eb 100644
--- a/kernel.go
+++ b/kernel.go
@@ -269,6 +269,10 @@ func matchOracleLinuxPkg(container, mask string) (
 		}
 	}
 
+	if len(pkgs) == 0 {
+		log.Warn().Msg("no packages matched")
+	}
+
 	return
 }