diff --git a/src/ios_io/op_symbols.h b/src/ios_io/op_symbols.h
index 2c4a3711bcaeb424392ad1dadf5db224f79e45c6..af0401c15ab28b0baa0cdbffb16a46215a26953e 100644
--- a/src/ios_io/op_symbols.h
+++ b/src/ios_io/op_symbols.h
@@ -14,27 +14,26 @@
 
 #pragma once
 
-#include "operators/prelu_op.h"
-#include "operators/fusion_conv_add_prelu_op.h"
-#include "operators/fusion_conv_add_add_prelu_op.h"
-#include "operators/bilinear_interp_op.h"
-#include "operators/conv_transpose_op.h"
-#include "operators/crf_op.h"
-#include "operators/flatten_op.h"
 #include "operators/batchnorm_op.h"
+#include "operators/bilinear_interp_op.h"
 #include "operators/box_coder_op.h"
 #include "operators/concat_op.h"
 #include "operators/conv_op.h"
+#include "operators/conv_transpose_op.h"
+#include "operators/crf_op.h"
 #include "operators/depthwise_conv_op.h"
 #include "operators/dropout_op.h"
 #include "operators/elementwise_add_op.h"
 #include "operators/feed_op.h"
 #include "operators/fetch_op.h"
+#include "operators/flatten_op.h"
 #include "operators/fusion_conv_add.h"
+#include "operators/fusion_conv_add_add_prelu_op.h"
 #include "operators/fusion_conv_add_bn_op.h"
+#include "operators/fusion_conv_add_bn_relu_op.h"
+#include "operators/fusion_conv_add_prelu_op.h"
 #include "operators/fusion_conv_add_relu_op.h"
 #include "operators/fusion_conv_bn_add_relu_op.h"
-#include "operators/fusion_conv_add_bn_relu_op.h"
 #include "operators/fusion_conv_bn_relu_op.h"
 #include "operators/fusion_dwconv_bn_relu_op.h"
 #include "operators/fusion_elementwise_add_relu_op.h"
@@ -47,6 +46,7 @@
 #include "operators/mul_op.h"
 #include "operators/multiclass_nms_op.h"
 #include "operators/pool_op.h"
+#include "operators/prelu_op.h"
 #include "operators/prior_box_op.h"
 #include "operators/relu_op.h"
 #include "operators/reshape_op.h"