diff --git a/src/dom_components/view/ComponentSvgView.js b/src/dom_components/view/ComponentSvgView.ts
similarity index 84%
rename from src/dom_components/view/ComponentSvgView.js
rename to src/dom_components/view/ComponentSvgView.ts
index befbc0597..ad27bf7e7 100644
--- a/src/dom_components/view/ComponentSvgView.js
+++ b/src/dom_components/view/ComponentSvgView.ts
@@ -1,7 +1,7 @@
 import ComponentView from './ComponentView';
 
 export default class ComponentSvgView extends ComponentView {
-  _createElement(tagName) {
+  _createElement(tagName: string) {
     return document.createElementNS('http://www.w3.org/2000/svg', tagName);
   }
 }