diff --git a/components/vfs/private_include/esp_vfs_private.h b/components/vfs/private_include/esp_vfs_private.h
index 0651dc71f3..4b6e4cf42f 100644
--- a/components/vfs/private_include/esp_vfs_private.h
+++ b/components/vfs/private_include/esp_vfs_private.h
@@ -13,9 +13,9 @@ extern "C" {
 #endif
 
 #if CONFIG_VFS_SELECT_IN_RAM
-#define VFS_MALLOC_FLAGS MALLOC_CAP_INTERNAL
+#define VFS_MALLOC_FLAGS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
 #else
-#define VFS_MALLOC_FLAGS MALLOC_CAP_DEFAULT
+#define VFS_MALLOC_FLAGS (MALLOC_CAP_DEFAULT)
 #endif
 
 typedef struct vfs_entry_ {