diff --git a/usr/lib/python3/dist-packages/unicode_show/tests/unicode_show.py b/usr/lib/python3/dist-packages/unicode_show/tests/unicode_show.py
index dff4ff3e..911aacce 100644
--- a/usr/lib/python3/dist-packages/unicode_show/tests/unicode_show.py
+++ b/usr/lib/python3/dist-packages/unicode_show/tests/unicode_show.py
@@ -480,7 +480,7 @@ def test_pty_color(self) -> None:
         self._test_stdin_pty(
             main_func=unicode_show_main,
             argv0=self.argv0,
-            stdout_string=expect_string_color,
+            stdout_string=expect_string_nocolor,
             exit_code=1,
             args=[],
             stdin_string=test_string,
diff --git a/usr/lib/python3/dist-packages/unicode_show/unicode_show.py b/usr/lib/python3/dist-packages/unicode_show/unicode_show.py
index 6a5c01a3..671586f9 100644
--- a/usr/lib/python3/dist-packages/unicode_show/unicode_show.py
+++ b/usr/lib/python3/dist-packages/unicode_show/unicode_show.py
@@ -174,7 +174,7 @@ def main() -> int:
     global USE_COLOR
     USE_COLOR = (
         not os.getenv("NOCOLOR")
-        and os.getenv("NO_COLOR") != "1"
+        and os.getenv("NO_COLOR") is None
         and os.getenv("TERM") != "dumb"
         and sys.stdout.isatty()
     )