diff --git a/config/ppc64le/default b/config/ppc64le/default
index 04684eb..c41530f 100644
--- a/config/ppc64le/default
+++ b/config/ppc64le/default
@@ -572,6 +572,7 @@ CONFIG_IOMMU_HELPER=y
 CONFIG_HOTPLUG_CPU=y
 CONFIG_ARCH_CPU_PROBE_RELEASE=y
 CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_HAS_WALK_MEMORY=y
 CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
 CONFIG_PPC64_SUPPORTS_MEMORY_FAILURE=y
 CONFIG_KEXEC=y