diff --git a/packages/strapi-plugin-content-type-builder/controllers/ContentTypeBuilder.js b/packages/strapi-plugin-content-type-builder/controllers/ContentTypeBuilder.js
index 99dbdeb727..8849d3f31a 100755
--- a/packages/strapi-plugin-content-type-builder/controllers/ContentTypeBuilder.js
+++ b/packages/strapi-plugin-content-type-builder/controllers/ContentTypeBuilder.js
@@ -86,7 +86,7 @@ module.exports = {
 
   updateModel: async ctx => {
     const { model } = ctx.params;
-    const { name, description, connection, collectionName, attributes = [], plugin } = ctx.request.body;
+    const { name, description, mainField, connection, collectionName, attributes = [], plugin } = ctx.request.body;
 
     if (!name) return ctx.badRequest(null, [{ messages: [{ id: 'request.error.name.missing' }] }]);
     if (!_.includes(Service.getConnections(), connection)) return ctx.badRequest(null, [{ messages: [{ id: 'request.error.connection.unknow' }] }]);
@@ -122,6 +122,10 @@ module.exports = {
       };
       modelJSON.attributes = formatedAttributes;
 
+      if (mainField) {
+        modelJSON.info.mainField = mainField;
+      }
+
       const clearRelationsErrors = Service.clearRelations(model, plugin);
 
       if (!_.isEmpty(clearRelationsErrors)) {
diff --git a/packages/strapi-plugin-content-type-builder/services/ContentTypeBuilder.js b/packages/strapi-plugin-content-type-builder/services/ContentTypeBuilder.js
index 6506d28eff..1be73429fc 100755
--- a/packages/strapi-plugin-content-type-builder/services/ContentTypeBuilder.js
+++ b/packages/strapi-plugin-content-type-builder/services/ContentTypeBuilder.js
@@ -105,6 +105,7 @@ module.exports = {
     return {
       name: _.get(model, 'info.name', 'model.name.missing'),
       description: _.get(model, 'info.description', 'model.description.missing'),
+      mainField: _.get(model, 'info.mainField', ''),
       connection: model.connection,
       collectionName: model.collectionName,
       attributes: attributes