diff --git a/testing/test_tracebackhide.py b/testing/test_tracebackhide.py
index bfd9b8011..88f9c4fc0 100644
--- a/testing/test_tracebackhide.py
+++ b/testing/test_tracebackhide.py
@@ -1,7 +1,5 @@
 def test_tbh_chained(testdir):
-    """
-    Ensure chained exceptions whose frames contain "__tracebackhide__" are not shown (#1904).
-    """
+    """Ensure chained exceptions whose frames contain "__tracebackhide__" are not shown (#1904)."""
     p = testdir.makepyfile(
         """
         import pytest