diff --git a/rtos/code/driver/na51089/source/mcu/sf_mcu.c b/rtos/code/driver/na51089/source/mcu/sf_mcu.c
index 59998b393..b00a28952 100755
--- a/rtos/code/driver/na51089/source/mcu/sf_mcu.c
+++ b/rtos/code/driver/na51089/source/mcu/sf_mcu.c
@@ -2171,7 +2171,6 @@ void sf_file_thumb_cfg_sava(void)
 	UINT8 fileIndex = 0;
     INT32 ret_fs = 0;
     FST_FILE_STATUS FileStat;
-    char tmp[64] = {'\0'};
     UIMenuStoreInfo *puiPara = sf_ui_para_get();
 
 	if (pThumbFileCfg != NULL) {
@@ -2183,6 +2182,7 @@ void sf_file_thumb_cfg_sava(void)
         //static int flag = 0;
         //struct stat st;
         #if SF_IQ_TEST != ENABLE
+        char tmp[64] = {'\0'};
         INT32 uiStatus = 0;
         UINT8  ucAttrib = 0;
         snprintf(tmp, sizeof(tmp), "%c%s", 'A', PHOTO_THUMB_PATH);