diff --git a/tqdm/cli.py b/tqdm/cli.py
index 1bbce6d1..d681b164 100644
--- a/tqdm/cli.py
+++ b/tqdm/cli.py
@@ -4,8 +4,8 @@ Module version for monitoring CLI pipes (`... | python -m tqdm | ...`).
 import logging
 import re
 import sys
-import textwrap
 from ast import literal_eval as numeric
+from textwrap import indent
 
 from .std import TqdmKeyError, TqdmTypeError, tqdm
 from .version import __version__
@@ -178,11 +178,9 @@ def main(fp=sys.stderr, argv=None):
     logging.basicConfig(level=getattr(logging, logLevel),
                         format="%(levelname)s:%(module)s:%(lineno)d:%(message)s")
 
-    d = tqdm.__doc__
-    if sys.version_info >= (3, 13):
-        # Python 3.13+ automatically dedents docstrings
-        d = textwrap.indent(d, "    ")
-    d += CLI_EXTRA_DOC
+    # py<3.13 doesn't dedent docstrings
+    d = (tqdm.__doc__ if sys.version_info < (3, 13)
+         else indent(tqdm.__doc__, "    ")) + CLI_EXTRA_DOC
 
     opt_types = dict(RE_OPTS.findall(d))
     # opt_types['delim'] = 'chr'