diff --git a/lib/if.c b/lib/if.c
index a57da35..5e440c3 100644
--- a/lib/if.c
+++ b/lib/if.c
@@ -495,7 +495,7 @@
 
   ifp = vty->index;
   if (ifp->desc)
-    XFREE (0, ifp->desc);
+    XFREE (MTYPE_TMP, ifp->desc);
   ifp->desc = NULL;
 
   return CMD_SUCCESS;