diff --git a/doc/source/plpython.rst b/doc/source/plpython.rst
index 77d49cb..7ca7e76 100644
--- a/doc/source/plpython.rst
+++ b/doc/source/plpython.rst
@@ -66,7 +66,7 @@ When authoring a Postgres function that takes a PostGIS geometry as an input par
       RETURNS geometry 
     AS $$
       from plpygis import Point
-      p = Point(x, y)
+      p = Point((x, y))
       return p
     $$ LANGUAGE plpython3u;