diff --git a/CHANGELOG b/CHANGELOG
index f61374d53b..c94a3b3006 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Add dimension and geometry type in field definition
+
 Version 5.0.0 - 2018-10-01
 * Bug fixes (see mercurial logs for details)
 * Add support for Python 3.7
diff --git a/trytond_gis/fields.py b/trytond_gis/fields.py
index c82ec4f8c1..43214f9675 100644
--- a/trytond_gis/fields.py
+++ b/trytond_gis/fields.py
@@ -51,6 +51,12 @@ class Geometry(fields.Field):
 
         return expression
 
+    def definition(self, model, language):
+        definition = super().definition(model, language)
+        definition['dimension'] = self.dimension
+        definition['geometry_type'] = self.geometry_type
+        return definition
+
 
 class Point(Geometry):
     _geometry_type = 'POINT'