diff --git a/x-pack/plugins/maps/public/classes/sources/xyz_tms_source/xyz_tms_source.ts b/x-pack/plugins/maps/public/classes/sources/xyz_tms_source/xyz_tms_source.ts
index 1db7c74abefc77..b1003d25fb7593 100644
--- a/x-pack/plugins/maps/public/classes/sources/xyz_tms_source/xyz_tms_source.ts
+++ b/x-pack/plugins/maps/public/classes/sources/xyz_tms_source/xyz_tms_source.ts
@@ -11,6 +11,7 @@ import { registerSource } from '../source_registry';
 import { AbstractTMSSource } from '../tms_source';
 import { XYZTMSSourceDescriptor } from '../../../../common/descriptor_types';
 import { Attribution, ImmutableSourceProperty } from '../source';
+import { XYZTMSSourceConfig } from './xyz_tms_editor';
 
 export const sourceTitle = i18n.translate('xpack.maps.source.ems_xyzTitle', {
   defaultMessage: 'Tile Map Service',
@@ -25,7 +26,7 @@ export class XYZTMSSource extends AbstractTMSSource {
     urlTemplate,
     attributionText,
     attributionUrl,
-  }: XYZTMSSourceDescriptor): XYZTMSSourceDescriptor {
+  }: XYZTMSSourceConfig): XYZTMSSourceDescriptor {
     return {
       type: XYZTMSSource.type,
       urlTemplate,