diff --git a/lib/buffer.c b/lib/buffer.c
index 60048bc..8666ab7 100644
--- a/lib/buffer.c
+++ b/lib/buffer.c
@@ -95,7 +95,7 @@
 
   for (data = b->head; data; data = data->next)
     totlen += data->cp - data->sp;
-  if (!(s = malloc(totlen+1)))
+  if (!(s = XMALLOC(MTYPE_TMP, totlen+1)))
     return NULL;
   p = s;
   for (data = b->head; data; data = data->next)