1 files changed, 6 insertions, 0 deletions

diff --git a/src/mailman/bin/runner.py b/src/mailman/bin/runner.py
index 76da0364f..7648ed961 100644
--- a/src/mailman/bin/runner.py
+++ b/src/mailman/bin/runner.py
@@ -42,6 +42,12 @@ from mailman.version import MAILMAN_VERSION_FULL
 log = None
 
 
+# Enable coverage if run under the appropriate test suite.
+if os.environ.get('COVERAGE_PROCESS_START') is not None:
+    import coverage
+    coverage.process_startup()
+
+
 
 class ROptionAction(argparse.Action):
     """Callback for -r/--runner option."""