diff --git a/testmon/pytest_testmon.py b/testmon/pytest_testmon.py
index 28fb48d..9567d4b 100644
--- a/testmon/pytest_testmon.py
+++ b/testmon/pytest_testmon.py
@@ -208,7 +208,7 @@ def pytest_runtestloop(self, session):
         for nodeid in ignored_deselected:
             self.report_if_failed(nodeid)
 
-    @pytest.mark.hookwrapper
+    @pytest.hookimpl(hookwrapper=True)
     def pytest_runtest_protocol(self, item, nextitem):
         if self.config.getoption('testmon_readonly'):
             yield