diff --git a/internal/types/types.go b/internal/types/types.go
index 396c4d7559..40a88a1008 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -1121,7 +1121,7 @@ type QueryCoordComponent interface {
 	SetEtcdClient(etcdClient *clientv3.Client)
 
 	// UpdateStateCode updates state code for QueryCoord
-	//  `stateCode` is current statement of this query coord, indicating whether it's healthy.
+	//  `stateCode` is current statement of this QueryCoord, indicating whether it's healthy.
 	UpdateStateCode(stateCode internalpb.StateCode)
 
 	// SetDataCoord set DataCoord for QueryCoord