diff --git a/src/_pytest/outcomes.py b/src/_pytest/outcomes.py
index 92b6824b6..ca251c0e8 100644
--- a/src/_pytest/outcomes.py
+++ b/src/_pytest/outcomes.py
@@ -59,7 +59,11 @@ class Exit(KeyboardInterrupt):
 
 
 def exit(msg, returncode=None):
-    """ exit testing process as if KeyboardInterrupt was triggered. """
+    """
+    Exit testing process as if KeyboardInterrupt was triggered.
+
+    :param int returncode: return code to be used when exiting pytest..
+    """
     __tracebackhide__ = True
     raise Exit(returncode, msg)