diff --git a/ui/public/assets/schema/attribute/attribute.schema.json b/ui/public/assets/schema/attribute/attribute.schema.json
index 4722a2e77..f3c51f504 100644
--- a/ui/public/assets/schema/attribute/attribute.schema.json
+++ b/ui/public/assets/schema/attribute/attribute.schema.json
@@ -112,7 +112,8 @@
                             "title": "label.entity-attribute-default",
                             "description": "tooltip.entity-attribute-default",
                             "type": "boolean",
-                            "default": true
+                            "default": true,
+                            "enumNames": ["True", "False"]
                         },
                         "persistValue": {
                             "type": "string",
diff --git a/ui/src/app/metadata/domain/attribute/CustomAttributeDefinition.js b/ui/src/app/metadata/domain/attribute/CustomAttributeDefinition.js
index 5d67d3857..6cdc69b74 100644
--- a/ui/src/app/metadata/domain/attribute/CustomAttributeDefinition.js
+++ b/ui/src/app/metadata/domain/attribute/CustomAttributeDefinition.js
@@ -37,7 +37,10 @@ export const CustomAttributeDefinition = {
             ]
         },
         defaultValueBoolean: {
-            'ui:widget': 'radio'
+            'ui:widget': 'radio',
+            'ui:options': {
+                inline: true
+            }
         },
         persistType: {
             'ui:widget': 'hidden'