diff --git a/ldb/os-common.c b/ldb/os-common.c
index 9829c8c05a071190981c26320ab38343f60fb239..f3c27532b6fec103af4dd0c4ac1d192f0acae2ea 100644
--- a/ldb/os-common.c
+++ b/ldb/os-common.c
@@ -46,7 +46,7 @@ os_vm_address_t os_allocate_at(addr,len)
 os_vm_address_t addr;
 os_vm_size_t len;
 {
-    return os_validate(&addr, len);
+    return os_validate(addr, len);
 }
 
 void os_deallocate(addr,len)