diff --git a/sys/vm/vm_map.h b/sys/vm/vm_map.h
index b685a18b01e2..6c89f2503f5e 100644
--- a/sys/vm/vm_map.h
+++ b/sys/vm/vm_map.h
@@ -298,8 +298,7 @@ long vmspace_resident_count(struct vmspace *vmspace);
 
 #ifdef _KERNEL
 boolean_t vm_map_check_protection (vm_map_t, vm_offset_t, vm_offset_t, vm_prot_t);
-struct pmap;
-vm_map_t vm_map_create (struct pmap *, vm_offset_t, vm_offset_t);
+vm_map_t vm_map_create(pmap_t, vm_offset_t, vm_offset_t);
 int vm_map_delete (vm_map_t, vm_offset_t, vm_offset_t);
 int vm_map_find (vm_map_t, vm_object_t, vm_ooffset_t, vm_offset_t *, vm_size_t, boolean_t, vm_prot_t, vm_prot_t, int);
 int vm_map_findspace (vm_map_t, vm_offset_t, vm_size_t, vm_offset_t *);