diff --git a/coincidence/__init__.py b/coincidence/__init__.py
index 085594c..ca3dd19 100644
--- a/coincidence/__init__.py
+++ b/coincidence/__init__.py
@@ -75,7 +75,7 @@
 __all__ = ("pytest_report_header", "PEP_563")
 
 
-def pytest_report_header(config, startdir) -> str:  # noqa: MAN001
+def pytest_report_header(config) -> str:  # noqa: MAN001
 	"""
 	Prints the start time of the pytest session.
 	"""