diff --git a/arch/arm64/configs/bcm2711_defconfig b/arch/arm64/configs/bcm2711_defconfig
index 72a51ad19bf525..4bd750587a52f6 100644
--- a/arch/arm64/configs/bcm2711_defconfig
+++ b/arch/arm64/configs/bcm2711_defconfig
@@ -71,6 +71,7 @@ CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
 CONFIG_CMA=y
 CONFIG_ZSWAP=y
+CONFIG_KSM=y
 CONFIG_Z3FOLD=m
 CONFIG_ZSMALLOC=m
 CONFIG_NET=y