diff --git a/server/wheelserver/mtb/mtb.auto_gen.go b/server/wheelserver/mtb/mtb.auto_gen.go
index be7d7858..908d893f 100644
--- a/server/wheelserver/mtb/mtb.auto_gen.go
+++ b/server/wheelserver/mtb/mtb.auto_gen.go
@@ -100,7 +100,7 @@ type Buff struct {
 
 type MapGrid struct {
         id int32
-        reward int32
+        reward string
 
         _flags1_ uint64
         _flags2_ uint64
@@ -449,7 +449,7 @@ func (this *MapGrid) HasId() bool {
         return (this._flags1_ & (uint64(1) << 1)) > 0
 }
 
-func (this *MapGrid) GetReward() int32 {
+func (this *MapGrid) GetReward() string {
         return this.reward
 }
 
diff --git a/server/wheelserver/proto/mt.proto b/server/wheelserver/proto/mt.proto
index 46e2dad3..68710b1c 100644
--- a/server/wheelserver/proto/mt.proto
+++ b/server/wheelserver/proto/mt.proto
@@ -81,7 +81,7 @@ message Buff
 message MapGrid
 {
     optional int32 id = 1;
-    optional int32 reward = 2;
+    optional string reward = 2;
 }
 
 message ShopGoods