diff --git a/target/linux/uml/config/x86_64 b/target/linux/uml/config/x86_64
index 89539ea2aa..2801074e2c 100644
--- a/target/linux/uml/config/x86_64
+++ b/target/linux/uml/config/x86_64
@@ -54,6 +54,7 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_MAC_PARTITION is not set
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_MCONSOLE=y
+CONFIG_MCORE2=y
 # CONFIG_MINI_FO is not set
 # CONFIG_MMAPPER is not set
 CONFIG_MK8=y