diff --git a/target/linux/mediatek/filogic/config-6.6 b/target/linux/mediatek/filogic/config-6.6
index 8b8444175d..a450de2e79 100644
--- a/target/linux/mediatek/filogic/config-6.6
+++ b/target/linux/mediatek/filogic/config-6.6
@@ -272,6 +272,7 @@ CONFIG_MTD_UBI_BLOCK=y
 CONFIG_MTD_UBI_FASTMAP=y
 CONFIG_MTD_UBI_NVMEM=y
 CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_MTD_VIRT_CONCAT=y
 # CONFIG_MTK_CMDQ is not set
 CONFIG_MTK_CPUX_TIMER=y
 # CONFIG_MTK_CQDMA is not set