diff --git a/_pytest/hookspec.py b/_pytest/hookspec.py
index cffc4f8b0af..70349416e20 100644
--- a/_pytest/hookspec.py
+++ b/_pytest/hookspec.py
@@ -489,10 +489,9 @@ def pytest_report_teststatus(report):
     Stops at first non-None result, see :ref:`firstresult` """
 
 
-def pytest_terminal_summary(config, terminalreporter, exitstatus):
+def pytest_terminal_summary(terminalreporter, exitstatus):
     """Add a section to terminal summary reporting.
 
-    :param _pytest.config.Config config: pytest config object
     :param _pytest.terminal.TerminalReporter terminalreporter: the internal terminal reporter object
     :param int exitstatus: the exit status that will be reported back to the OS
 
diff --git a/_pytest/terminal.py b/_pytest/terminal.py
index 90c5d87d992..18200945bf3 100644
--- a/_pytest/terminal.py
+++ b/_pytest/terminal.py
@@ -480,7 +480,6 @@ def pytest_sessionfinish(self, exitstatus):
             EXIT_NOTESTSCOLLECTED)
         if exitstatus in summary_exit_codes:
             self.config.hook.pytest_terminal_summary(terminalreporter=self,
-                                                     config=self.config,
                                                      exitstatus=exitstatus)
         if exitstatus == EXIT_INTERRUPTED:
             self._report_keyboardinterrupt()