diff --git a/test_tipc/benchmark_train.sh b/test_tipc/benchmark_train.sh
index c4e3a66d30a91a806880bb9829b254b9c5ef5221..5d50c6e92f4e4431fc4b328206362e1021cbc9d2 100644
--- a/test_tipc/benchmark_train.sh
+++ b/test_tipc/benchmark_train.sh
@@ -208,8 +208,8 @@ for batch_size in ${batch_size_list[*]}; do
                     for ((i=1; i <=$copy_num; i++));do
                         cat val_list.txt >> train_list.txt
                     done
-		else
-		    ln -s val_list.txt train_list.txt
+                else
+                    ln -s val_list.txt train_list.txt
                 fi
                 cd ../../
             fi