diff --git a/copyparty/__main__.py b/copyparty/__main__.py
index 36f3e7c3..b5ed7e2c 100755
--- a/copyparty/__main__.py
+++ b/copyparty/__main__.py
@@ -1218,7 +1218,7 @@ def add_db_general(ap, hcores):
     ap2.add_argument("--no-hash", metavar="PTN", type=u, help="regex: disable hashing of matching absolute-filesystem-paths during e2ds folder scans (volflag=nohash)")
     ap2.add_argument("--no-idx", metavar="PTN", type=u, default=noidx, help="regex: disable indexing of matching absolute-filesystem-paths during e2ds folder scans (volflag=noidx)")
     ap2.add_argument("--no-dhash", action="store_true", help="disable rescan acceleration; do full database integrity check -- makes the db ~5%% smaller and bootup/rescans 3~10x slower")
-    ap2.add_argument("--re-dhash", action="store_true", help="rebuild the cache if it gets out of sync (for example crash on startup during metadata scanning)")
+    ap2.add_argument("--re-dhash", action="store_true", help="force a cache rebuild on startup; enable this once if it gets out of sync (should never be necessary)")
     ap2.add_argument("--no-forget", action="store_true", help="never forget indexed files, even when deleted from disk -- makes it impossible to ever upload the same file twice -- only useful for offloading uploads to a cloud service or something (volflag=noforget)")
     ap2.add_argument("--dbd", metavar="PROFILE", default="wal", help="database durability profile; sets the tradeoff between robustness and speed, see \033[33m--help-dbd\033[0m (volflag=dbd)")
     ap2.add_argument("--xlink", action="store_true", help="on upload: check all volumes for dupes, not just the target volume (volflag=xlink)")