diff -r 07b815faa6ac -r f00d03835dd9 src/server/safs/nametrans.c
--- a/src/server/safs/nametrans.c	Tue Dec 30 21:44:49 2025 +0100
+++ b/src/server/safs/nametrans.c	Tue Jan 13 18:09:20 2026 +0100
@@ -325,7 +325,7 @@
     cxstring f = cx_str(from);
     if(cx_strprefix(u, f)) {
         cxstring suf = cx_strsubs(u, f.length);
-        cxmutstr ppath = cx_strcat(2, cx_str(path), suf);
+        cxmutstr ppath = cx_strcat(CX_NULLSTR, 2, cx_str(path), suf);
         
         request_set_path(cx_str(root), (cxstring){ppath.ptr, ppath.length}, rq->vars);
         free(ppath.ptr);