diff --git a/platform/broadcom/sonic-platform-modules-accton/as9736-64d/modules/accton_as9736_64d_psu.c b/platform/broadcom/sonic-platform-modules-accton/as9736-64d/modules/accton_as9736_64d_psu.c
index fec334f4a54f..3d7a9ea298c2 100755
--- a/platform/broadcom/sonic-platform-modules-accton/as9736-64d/modules/accton_as9736_64d_psu.c
+++ b/platform/broadcom/sonic-platform-modules-accton/as9736-64d/modules/accton_as9736_64d_psu.c
@@ -278,9 +278,12 @@ static struct as9736_64d_psu_data *as9736_64d_psu_update_device(struct device *d
         /* Read model name */
 #ifdef __STDC_LIB_EXT1__
         memset_s(data->model_name, sizeof(data->model_name), 0, sizeof(data->model_name));
-        memset_s(data->serial_number, sizeof(data->model_name), 0, sizeof(data->serial_number));
 #else
         memset(data->model_name, 0, sizeof(data->model_name));
+#endif
+#ifdef __STDC_LIB_EXT1__
+        memset_s(data->serial_number, sizeof(data->model_name), 0, sizeof(data->serial_number));
+#else
         memset(data->serial_number, 0, sizeof(data->serial_number));
 #endif
         power_good = (data->status_pwr_good >> (1-data->index) & 0x1);