diff --git a/mlu_op_test.proto b/mlu_op_test.proto
index 8e81b70..86cb131 100755
--- a/mlu_op_test.proto
+++ b/mlu_op_test.proto
@@ -306,7 +306,7 @@ enum OpType {
   SQRT = 2021;
   SQRT_BACKWARD = 55660;
   STRIDED_SLICE = 657;
-  SYNC_BATCH_NORM_BACKWARD_ELEMT = 1663;
+  SYNC_BATCHNORM_BACKWARD_ELEMT = 1663;
   SYNC_BATCHNORM_BACKWARD_ELEMT_V2 = 1664;
   SYNC_BATCHNORM_BACKWARD_REDUCE = 38324;
   SYNC_BATCHNORM_ELEMT = 1662;
@@ -1182,4 +1182,4 @@ message DCNParam {
 // param to call mluOpLogcumsumexp()
 message LogcumsumexpParam {
   optional int32 dim = 1 [default = 0];
-}
\ No newline at end of file
+}