diff --git a/pkg/experiment/metastore/raftlogpb/raflog.proto b/pkg/experiment/metastore/raftlogpb/raflog.proto
index 747cbff7dc..5041b8db37 100644
--- a/pkg/experiment/metastore/raftlogpb/raflog.proto
+++ b/pkg/experiment/metastore/raftlogpb/raflog.proto
@@ -14,6 +14,4 @@ enum CommandType {
   COMMAND_TYPE_CLEAN_BLOCKS = 3;
 }
 
-message CleanBlocksRequest {
-
-}
+message CleanBlocksRequest {}