diff --git a/src/proxy.c b/src/proxy.c
index 0d8c7b1..d1c926b 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -1851,7 +1851,7 @@
 		if (srv->srvrq && srv->srvrq->name)
 			srvrecord = srv->srvrq->name;
 
-		chunk_appendf(&trash,
+		chunk_printf(&trash,
 				"%d %s "
 				"%d %s %s "
 				"%d %d %d %d %ld "