diff --git a/include/asm-i386/mmu.h b/include/asm-i386/mmu.h
index f431a0b..8358dd3 100644
--- a/include/asm-i386/mmu.h
+++ b/include/asm-i386/mmu.h
@@ -12,6 +12,7 @@
 	int size;
 	struct semaphore sem;
 	void *ldt;
+	void *vdso;
 } mm_context_t;
 
 #endif