diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 5ab239711cc218c56000c7893a26ae7288341281..cfb2d68dc7959a6767696f509418f115a1307a07 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -168,7 +168,7 @@ static void lazy_hcall3(unsigned long call,
  * issue the do-nothing hypercall to flush any stored calls. */
 static void lguest_leave_lazy_mmu_mode(void)
 {
-	hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0);
+	kvm_hypercall0(LHCALL_FLUSH_ASYNC);
 	paravirt_leave_lazy_mmu();
 }