diff --git a/resources/linux-config-x86_64 b/resources/linux-config-x86_64
index 9e0c68552..e21f60f90 100644
--- a/resources/linux-config-x86_64
+++ b/resources/linux-config-x86_64
@@ -838,7 +838,7 @@ CONFIG_MEMORY_ISOLATION=y
 CONFIG_HAVE_BOOTMEM_INFO_NODE=y
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTPLUG_SPARSE=y
-# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
+CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MEMORY_BALLOON=y