diff --git a/libraries/libldap/dnssrv.c b/libraries/libldap/dnssrv.c
index da89b4a269..e4c6580320 100644
--- a/libraries/libldap/dnssrv.c
+++ b/libraries/libldap/dnssrv.c
@@ -399,7 +399,7 @@ add_size:;
         if(cur>0){
             hostlist[cur++]=' ';
         }
-        cur += sprintf(&hostlist[cur], "%s:%hd", hostent_head[i].hostname, hostent_head[i].port);
+        cur += sprintf(&hostlist[cur], "%s:%hu", hostent_head[i].hostname, hostent_head[i].port);
     }
     }