diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index f252b71..51149ca 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -79,8 +79,8 @@
 	case LHCALL_SET_PTE:
 		guest_set_pte(cpu, args->arg1, args->arg2, __pte(args->arg3));
 		break;
-	case LHCALL_SET_PMD:
-		guest_set_pmd(cpu->lg, args->arg1, args->arg2);
+	case LHCALL_SET_PGD:
+		guest_set_pgd(cpu->lg, args->arg1, args->arg2);
 		break;
 	case LHCALL_SET_CLOCKEVENT:
 		guest_set_clockevent(cpu, args->arg1);
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index 74af503..cacc2da 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -169,7 +169,7 @@
 int init_guest_pagetable(struct lguest *lg);
 void free_guest_pagetable(struct lguest *lg);
 void guest_new_pagetable(struct lg_cpu *cpu, unsigned long pgtable);
-void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 i);
+void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 i);
 void guest_pagetable_clear_all(struct lg_cpu *cpu);
 void guest_pagetable_flush_user(struct lg_cpu *cpu);
 void guest_set_pte(struct lg_cpu *cpu, unsigned long gpgdir,
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index ffba723..6a54d76 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -568,7 +568,7 @@
  *
  * So with that in mind here's our code to to update a (top-level) PGD entry:
  */
-void guest_set_pmd(struct lguest *lg, unsigned long gpgdir, u32 idx)
+void guest_set_pgd(struct lguest *lg, unsigned long gpgdir, u32 idx)
 {
 	int pgdir;