diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c7314f9..6c97259 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1053,7 +1053,7 @@
 		.strategy	= &sysctl_string,
 	},
 #endif
-#if defined(CONFIG_X86_32) || \
+#if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \
    (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL))
 	{
 		.ctl_name	= VM_VDSO_ENABLED,