diff --git a/docs/ref/contrib/gis/model-api.txt b/docs/ref/contrib/gis/model-api.txt
index 7ea6e9a080..0f9c311922 100644
--- a/docs/ref/contrib/gis/model-api.txt
+++ b/docs/ref/contrib/gis/model-api.txt
@@ -205,7 +205,7 @@ three-dimensional support.
 
 .. note::
 
-    At this time 3D support is limited to the PostGIS spatial backend.
+    At this time 3D support is limited to the PostGIS and SpatiaLite backends.
 
 ``geography``
 -------------