diff --git a/src/objecttypes/api/v1/openapi.yaml b/src/objecttypes/api/v1/openapi.yaml
index 108232b9..55577ebd 100644
--- a/src/objecttypes/api/v1/openapi.yaml
+++ b/src/objecttypes/api/v1/openapi.yaml
@@ -497,7 +497,10 @@ components:
           description: Last date when the object type was modified
         hasGeometry:
           type: boolean
-          description: Shows whether the related objects have geographic coordinates
+          description: 'Shows whether the related objects have geographic coordinates.
+            If the value is ''false'' the related objects are not allowed to have
+            coordinates and the creation/update of objects with `geometry` property
+            will raise an error '
         versions:
           type: array
           items:
@@ -639,7 +642,10 @@ components:
           description: Last date when the object type was modified
         hasGeometry:
           type: boolean
-          description: Shows whether the related objects have geographic coordinates
+          description: 'Shows whether the related objects have geographic coordinates.
+            If the value is ''false'' the related objects are not allowed to have
+            coordinates and the creation/update of objects with `geometry` property
+            will raise an error '
         versions:
           type: array
           items:
diff --git a/src/objecttypes/api/v2/openapi.yaml b/src/objecttypes/api/v2/openapi.yaml
index 93701985..425429ca 100644
--- a/src/objecttypes/api/v2/openapi.yaml
+++ b/src/objecttypes/api/v2/openapi.yaml
@@ -517,7 +517,10 @@ components:
           description: Last date when the object type was modified
         hasGeometry:
           type: boolean
-          description: Shows whether the related objects have geographic coordinates
+          description: 'Shows whether the related objects have geographic coordinates.
+            If the value is ''false'' the related objects are not allowed to have
+            coordinates and the creation/update of objects with `geometry` property
+            will raise an error '
         versions:
           type: array
           items:
@@ -699,7 +702,10 @@ components:
           description: Last date when the object type was modified
         hasGeometry:
           type: boolean
-          description: Shows whether the related objects have geographic coordinates
+          description: 'Shows whether the related objects have geographic coordinates.
+            If the value is ''false'' the related objects are not allowed to have
+            coordinates and the creation/update of objects with `geometry` property
+            will raise an error '
         versions:
           type: array
           items:
diff --git a/src/objecttypes/core/migrations/0017_auto_20211126_1736.py b/src/objecttypes/core/migrations/0017_auto_20211126_1736.py
new file mode 100644
index 00000000..7ed44f57
--- /dev/null
+++ b/src/objecttypes/core/migrations/0017_auto_20211126_1736.py
@@ -0,0 +1,22 @@
+# Generated by Django 2.2.24 on 2021-11-26 16:36
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0016_objecttype_has_geometry"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="objecttype",
+            name="has_geometry",
+            field=models.BooleanField(
+                default=True,
+                help_text="Shows whether the related objects have geographic coordinates. If the value is 'false' the related objects are not allowed to have coordinates and the creation/update of objects with `geometry` property will raise an error ",
+                verbose_name="has geometry",
+            ),
+        ),
+    ]
diff --git a/src/objecttypes/core/models.py b/src/objecttypes/core/models.py
index eeff578f..60476032 100644
--- a/src/objecttypes/core/models.py
+++ b/src/objecttypes/core/models.py
@@ -109,7 +109,12 @@ class ObjectType(models.Model):
     has_geometry = models.BooleanField(
         _("has geometry"),
         default=True,
-        help_text=_("Shows whether the related objects have geographic coordinates"),
+        help_text=_(
+            "Shows whether the related objects have geographic coordinates. "
+            "If the value is 'false' the related objects are not allowed to "
+            "have coordinates and the creation/update of objects with "
+            "`geometry` property will raise an error "
+        ),
     )
 
     def __str__(self):