diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f1a4eb1..f54afed 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -928,6 +928,18 @@
 		.strategy	= &sysctl_jiffies,
 	},
 #endif
+#ifdef CONFIG_X86_32
+	{
+		.ctl_name	= VM_VDSO_ENABLED,
+		.procname	= "vdso_enabled",
+		.data		= &vdso_enabled,
+		.maxlen		= sizeof(vdso_enabled),
+		.mode		= 0644,
+		.proc_handler	= &proc_dointvec,
+		.strategy	= &sysctl_intvec,
+		.extra1		= &zero,
+	},
+#endif
 	{ .ctl_name = 0 }
 };