diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8ee67e3fb9d0221fc58f35841577f83e14d2e0e7..8f2cb29db2fed64927016e51713ce17c1d1db164 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -242,7 +242,7 @@ static int is_writeble_pte(unsigned long pte)
 
 static int is_dirty_pte(unsigned long pte)
 {
-	return pte & shadow_dirty_mask;
+	return pte & PT_DIRTY_MASK;
 }
 
 static int is_rmap_pte(u64 pte)