diff --git a/internal/types/types.go b/internal/types/types.go
index af20955f5b7230958576dc2085c576bc8df7c365..18dc5ac80e3a9d33399f13e87458f63ca4a15159 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -227,6 +227,7 @@ type DataCoord interface {
 	ManualCompaction(ctx context.Context, req *milvuspb.ManualCompactionRequest) (*milvuspb.ManualCompactionResponse, error)
 	// GetCompactionState gets the state of a compaction
 	GetCompactionState(ctx context.Context, req *milvuspb.GetCompactionStateRequest) (*milvuspb.GetCompactionStateResponse, error)
+	// GetCompactionStateWithPlans get the state of requested plan id
 	GetCompactionStateWithPlans(ctx context.Context, req *milvuspb.GetCompactionPlansRequest) (*milvuspb.GetCompactionPlansResponse, error)
 
 	// WatchChannels notifies DataCoord to watch vchannels of a collection