diff --git a/internal/types/types.go b/internal/types/types.go
index b61447856bfcbfffdad171c3285b82e6053c7b34..cefeabbafb5d7e374a32a28737c942ec707f0498 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -661,7 +661,7 @@ type ProxyComponent interface {
 	// `rootCoord` is a client of root coordinator.
 	SetRootCoordClient(rootCoord RootCoord)
 
-	// SetDataCoord set DataCoord for Proxy
+	// SetDataCoordClient set DataCoord for Proxy
 	// `dataCoord` is a client of data coordinator.
 	SetDataCoordClient(dataCoord DataCoord)