diff --git a/sys/ia64/include/pmap.h b/sys/ia64/include/pmap.h
index 31418b6ac763..0aa4029198f7 100644
--- a/sys/ia64/include/pmap.h
+++ b/sys/ia64/include/pmap.h
@@ -112,7 +112,7 @@ typedef struct pv_entry {
 
 #ifdef	_KERNEL
 
-extern vm_offset_t phys_avail[];
+extern vm_paddr_t phys_avail[];
 extern vm_offset_t virtual_avail;
 extern vm_offset_t virtual_end;