diff --git a/target/linux/mediatek/mt7981/config-5.4 b/target/linux/mediatek/mt7981/config-5.4
index 1663f2f..282d18c 100644
--- a/target/linux/mediatek/mt7981/config-5.4
+++ b/target/linux/mediatek/mt7981/config-5.4
@@ -414,6 +414,7 @@
 # CONFIG_SPI_MTK_NOR is not set
 CONFIG_SPI_MTK_SNFI=y
 CONFIG_SRCU=y
+CONFIG_SWCONFIG=y
 CONFIG_SWIOTLB=y
 CONFIG_SWPHY=y
 CONFIG_SYSCTL_EXCEPTION_TRACE=y