diff --git a/br-ext-chip-ambarella/board/s3l/s3l.generic.config b/br-ext-chip-ambarella/board/s3l/s3l.generic.config
index a97fbd3600..542b106c37 100644
--- a/br-ext-chip-ambarella/board/s3l/s3l.generic.config
+++ b/br-ext-chip-ambarella/board/s3l/s3l.generic.config
@@ -197,7 +197,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_MODULE_SRCVERSION_ALL is not set
 # CONFIG_MODULE_SIG is not set
 CONFIG_BLOCK=y
-# CONFIG_LBDAF is not set
+CONFIG_LBDAF=y
 # CONFIG_BLK_DEV_BSG is not set
 # CONFIG_BLK_DEV_BSGLIB is not set
 # CONFIG_BLK_DEV_INTEGRITY is not set