diff --git a/arch/x86/vdso/vvar.c b/arch/x86/vdso/vvar.c
index 6fc22219a47249bfd8b9f13698103d4efd0eb7c9..1b7e703684f90ae73eb88855425c3ce907a413e0 100644
--- a/arch/x86/vdso/vvar.c
+++ b/arch/x86/vdso/vvar.c
@@ -8,5 +8,5 @@
 #include <asm/timex.h>
 #include <asm/vgtod.h>
 
-#define VEXTERN(x) typeof (__ ## x) *vdso_ ## x = (void *)VMAGIC;
+#define VEXTERN(x) typeof (__ ## x) *const vdso_ ## x = (void *)VMAGIC;
 #include "vextern.h"