1 files changed, 1 insertions, 1 deletions

diff --git a/data.c b/data.c
index 1866d5e..edbc64f 100644
--- a/data.c
+++ b/data.c
@@ -1832,7 +1832,7 @@ xs_val *list_maint(snac *user, const char *list, int op)
                 fn = xs_replace_i(fn, ".lst", ".idx");
                 unlink(fn);
 
-                fn = xs_append(fn, ".bak");
+                fn = xs_str_cat(fn, ".bak");
                 unlink(fn);
             }
         }