diff --git a/packages/twenty-server/src/engine/metadata-modules/object-metadata/utils/validate-object-metadata-input.util.ts b/packages/twenty-server/src/engine/metadata-modules/object-metadata/utils/validate-object-metadata-input.util.ts
index d2333ae1b..d22281cf5 100644
--- a/packages/twenty-server/src/engine/metadata-modules/object-metadata/utils/validate-object-metadata-input.util.ts
+++ b/packages/twenty-server/src/engine/metadata-modules/object-metadata/utils/validate-object-metadata-input.util.ts
@@ -40,10 +40,15 @@ const reservedKeywords = [
   'fullNames',
   'address',
   'addresses',
+  'type',
+  'types',
+  'object',
+  'objects',
+  'index',
+  'relation',
+  'relations',
 ];
 
-const METADATA_NAME_VALID_PATTERN = /^[a-zA-Z][a-zA-Z0-9]*$/;
-
 export const validateObjectMetadataInputOrThrow = <
   T extends UpdateObjectPayload | CreateObjectInput,
 >(