1 files changed, 1 insertions, 1 deletions
diff --git a/weed/pb/master.proto b/weed/pb/master.proto
index f4230d029..80231a2d8 100644
--- a/weed/pb/master.proto
+++ b/weed/pb/master.proto
@@ -139,7 +139,7 @@ message AssignRequest {
     string data_center = 5;
     string rack = 6;
     string data_node = 7;
-    uint32 MemoryMapMaxSizeMB = 8;
+    uint32 memory_map_max_size_mb = 8;
 }
 message AssignResponse {
     string fid = 1;