diff --git a/locust/runners.py b/locust/runners.py
index c1eaa50384..617bac43b4 100644
--- a/locust/runners.py
+++ b/locust/runners.py
@@ -84,7 +84,7 @@ def user_classes(self):
         return self.environment.user_classes
     
     @property
-    def stats(self):
+    def stats(self) -> RequestStats:
         return self.environment.stats
     
     @property