diff --git a/components/fatfs/src/vfs_fat_sdmmc.c b/components/fatfs/src/vfs_fat_sdmmc.c
index f31790e0f..094f68d51 100644
--- a/components/fatfs/src/vfs_fat_sdmmc.c
+++ b/components/fatfs/src/vfs_fat_sdmmc.c
@@ -157,6 +157,8 @@ fail:
     ff_diskio_unregister(pdrv);
     free(s_card);
     s_card = NULL;
+    free(s_base_path);
+    s_base_path = NULL;
     return err;
 }