diff --git a/copyparty/cfg.py b/copyparty/cfg.py
index 9ea72c4f..4c584dc5 100644
--- a/copyparty/cfg.py
+++ b/copyparty/cfg.py
@@ -2,7 +2,7 @@
 from __future__ import print_function, unicode_literals
 
 # awk -F\" '/add_argument\("-[^-]/{print(substr($2,2))}' copyparty/__main__.py | sort | tr '\n' ' '
-zs = "a c e2d e2ds e2dsa e2t e2ts e2tsr e2v e2vp e2vu ed emp i j lo mcr mte mth mtm mtp nb nc nid nih nw p q s ss sss v z zv"
+zs = "a c e2d e2ds e2dsa e2t e2ts e2tsr e2v e2vp e2vu ed emp i j lo mcr mte mth mtm mtp nb nc nid nih nth nw p q s ss sss v z zv"
 onedash = set(zs.split())
 
 
diff --git a/copyparty/ftpd.py b/copyparty/ftpd.py
index e17e45c3..c94c6cc6 100644
--- a/copyparty/ftpd.py
+++ b/copyparty/ftpd.py
@@ -163,7 +163,7 @@ class FtpFs(AbstractedFS):
                 t = "Unsupported characters in [{}]"
                 raise FSE(t.format(vpath), 1)
 
-            fn = sanitize_fn(fn or "", "", [".prologue.html", ".epilogue.html"])
+            fn = sanitize_fn(fn or "", "")
             vpath = vjoin(rd, fn)
             vfs, rem = self.hub.asrv.vfs.get(vpath, self.uname, r, w, m, d)
             if not vfs.realpath:
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 099f56f7..ca1e31ca 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -1804,7 +1804,7 @@ class HttpCli(object):
             if rnd:
                 fn = rand_name(fdir, fn, rnd)
 
-            fn = sanitize_fn(fn or "", "", [".prologue.html", ".epilogue.html"])
+            fn = sanitize_fn(fn or "", "")
 
         path = os.path.join(fdir, fn)
 
@@ -2547,7 +2547,7 @@ class HttpCli(object):
         self.gctx = vpath
         vpath = undot(vpath)
         vfs, rem = self.asrv.vfs.get(vpath, self.uname, False, True)
-        rem = sanitize_vpath(rem, "/", [])
+        rem = sanitize_vpath(rem, "/")
         fn = vfs.canonical(rem)
         if not fn.startswith(vfs.realpath):
             self.log("invalid mkdir [%s] [%s]" % (self.gctx, vpath), 1)
@@ -2594,7 +2594,7 @@ class HttpCli(object):
         if not ext or len(ext) > 5 or not self.can_delete:
             new_file += ".md"
 
-        sanitized = sanitize_fn(new_file, "", [])
+        sanitized = sanitize_fn(new_file, "")
 
         if not nullwrite:
             fdir = vfs.canonical(rem)
@@ -2673,9 +2673,7 @@ class HttpCli(object):
                     # fallthrough
 
                 fdir = fdir_base
-                fname = sanitize_fn(
-                    p_file or "", "", [".prologue.html", ".epilogue.html"]
-                )
+                fname = sanitize_fn(p_file or "", "")
                 abspath = os.path.join(fdir, fname)
                 suffix = "-%.6f-%s" % (time.time(), dip)
                 if p_file and not nullwrite:
diff --git a/copyparty/szip.py b/copyparty/szip.py
index ec37016a..6352e21d 100644
--- a/copyparty/szip.py
+++ b/copyparty/szip.py
@@ -105,7 +105,7 @@ def gen_hdr(
     ret += spack(b"<LL", vsz, vsz)
 
     # windows support (the "?" replace below too)
-    fn = sanitize_fn(fn, "/", [])
+    fn = sanitize_fn(fn, "/")
     bfn = fn.encode("utf-8" if utf8 else "cp437", "replace").replace(b"?", b"_")
 
     # add ntfs (0x24) and/or unix (0x10) extrafields for utc, add z64 if requested
diff --git a/copyparty/up2k.py b/copyparty/up2k.py
index b79a16d3..165f1a7b 100644
--- a/copyparty/up2k.py
+++ b/copyparty/up2k.py
@@ -2777,7 +2777,7 @@ class Up2k(object):
             if ptop not in self.registry:
                 raise Pebkac(410, "location unavailable")
 
-        cj["name"] = sanitize_fn(cj["name"], "", [".prologue.html", ".epilogue.html"])
+        cj["name"] = sanitize_fn(cj["name"], "")
         cj["poke"] = now = self.db_act = self.vol_act[ptop] = time.time()
         wark = self._get_wark(cj)
         job = None
diff --git a/copyparty/util.py b/copyparty/util.py
index a99189da..c51a7f8f 100644
--- a/copyparty/util.py
+++ b/copyparty/util.py
@@ -1982,13 +1982,10 @@ def undot(path: str) -> str:
     return "/".join(ret)
 
 
-def sanitize_fn(fn: str, ok: str, bad: list[str]) -> str:
+def sanitize_fn(fn: str, ok: str) -> str:
     if "/" not in ok:
         fn = fn.replace("\\", "/").split("/")[-1]
 
-    if fn.lower() in bad:
-        fn = "_" + fn
-
     if ANYWIN:
         remap = [
             ["<", "＜"],
@@ -2014,9 +2011,9 @@ def sanitize_fn(fn: str, ok: str, bad: list[str]) -> str:
     return fn.strip()
 
 
-def sanitize_vpath(vp: str, ok: str, bad: list[str]) -> str:
+def sanitize_vpath(vp: str, ok: str) -> str:
     parts = vp.replace(os.sep, "/").split("/")
-    ret = [sanitize_fn(x, ok, bad) for x in parts]
+    ret = [sanitize_fn(x, ok) for x in parts]
     return "/".join(ret)