diff --git a/components/fatfs/test_apps/flash_wl/sdkconfig.ci.auto_fsync b/components/fatfs/test_apps/flash_wl/sdkconfig.ci.auto_fsync
index 85252ff496..9ab32baa68 100644
--- a/components/fatfs/test_apps/flash_wl/sdkconfig.ci.auto_fsync
+++ b/components/fatfs/test_apps/flash_wl/sdkconfig.ci.auto_fsync
@@ -1,2 +1,3 @@
 CONFIG_FATFS_IMMEDIATE_FSYNC=y
 CONFIG_ESP_MAIN_TASK_STACK_SIZE=4096
+CONFIG_FATFS_VFS_FSTAT_BLKSIZE=2048