diff --git a/src/pytest_cov/__init__.py b/src/pytest_cov/__init__.py
index e5e59e38..e003e0cd 100644
--- a/src/pytest_cov/__init__.py
+++ b/src/pytest_cov/__init__.py
@@ -1 +1,2 @@
+"""pytest-cov: avoid already-imported warning: PYTEST_DONT_REWRITE."""
 __version__ = "2.6.0"