diff --git a/pkg/agent/core/ngt/service/vqueue/queue.go b/pkg/agent/core/ngt/service/vqueue/queue.go
index 5d680a4a0ca..8461bfb0376 100644
--- a/pkg/agent/core/ngt/service/vqueue/queue.go
+++ b/pkg/agent/core/ngt/service/vqueue/queue.go
@@ -47,7 +47,7 @@ type vqueue struct {
 	ic, dc uint64
 }
 
-type Index interface{
+type Index interface {
 	Less(index) bool
 }