diff --git a/docs/ref/contrib/gis/install.txt b/docs/ref/contrib/gis/install.txt
index d66fd7ab772..20bec32a8d3 100644
--- a/docs/ref/contrib/gis/install.txt
+++ b/docs/ref/contrib/gis/install.txt
@@ -523,6 +523,9 @@ spatial functionality::
     > CREATE EXTENSION postgis;
     > CREATE EXTENSION postgis_topology;
 
+No PostGIS topology functionalities are yet available from GeoDjango, so the
+creation of the ``postgis_topology`` extension is entirely optional.
+
 .. _spatialdb_template_earlier:
 
 Creating a spatial database template for earlier versions