diff --git a/arch/arm/configs/rv1126b_defconfig b/arch/arm/configs/rv1126b_defconfig
index e3ca180caa5b..ba5887705fbc 100644
--- a/arch/arm/configs/rv1126b_defconfig
+++ b/arch/arm/configs/rv1126b_defconfig
@@ -20,6 +20,7 @@ CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SMP=y
 CONFIG_SCHED_MC=y
 CONFIG_VMSPLIT_3G_OPT=y
+CONFIG_HOTPLUG_CPU=y
 CONFIG_ARM_PSCI=y
 CONFIG_THUMB2_KERNEL=y
 CONFIG_HIGHMEM=y