diff --git a/flask.py b/flask.py
index 5af32ea8..dcf26b32 100644
--- a/flask.py
+++ b/flask.py
@@ -1113,7 +1113,7 @@ class Flask(_PackageBoundObject):
             with app.request_context(environ):
                 do_something_with(request)
 
-        :params environ: a WSGI environment
+        :param environ: a WSGI environment
         """
         return _RequestContext(self, environ)