diff --git a/lib/discovery/global/scan.go b/lib/discovery/global/scan.go
index ddbaf23..650ee45 100644
--- a/lib/discovery/global/scan.go
+++ b/lib/discovery/global/scan.go
@@ -103,7 +103,7 @@
 		id = targetKey
 	}
 	if targetInterface := matcher.TargetInterfaceName(); targetInterface != "" {
-		interfaceName = targetInterface
+		interfaceName = naming.EncodeAsNameElement(targetInterface)
 	}
 	return naming.Join(id, interfaceName, timestamp, attrs)
 }