diff --git a/src/dom_components/model/ComponentTableBody.js b/src/dom_components/model/ComponentTableBody.ts
similarity index 75%
rename from src/dom_components/model/ComponentTableBody.js
rename to src/dom_components/model/ComponentTableBody.ts
index 8e9a0df7e..ef12c8702 100644
--- a/src/dom_components/model/ComponentTableBody.js
+++ b/src/dom_components/model/ComponentTableBody.ts
@@ -1,11 +1,12 @@
 import Component from './Component';
-import { toLowerCase } from 'utils/mixins';
+import { toLowerCase } from '../../utils/mixins';
 
 const type = 'tbody';
 
 export default class ComponentTableBody extends Component {
   get defaults() {
     return {
+      // @ts-ignore
       ...super.defaults,
       type,
       tagName: type,
@@ -16,9 +17,9 @@ export default class ComponentTableBody extends Component {
     };
   }
 
-  initialize(o, opt) {
-    Component.prototype.initialize.apply(this, arguments);
-    const components = this.get('components');
+  initialize(props: any, opts: any) {
+    super.initialize(props, opts);
+    const components = this.get('components')!;
     let columns = this.get('columns');
     let rows = this.get('rows');
 
@@ -47,5 +48,8 @@ export default class ComponentTableBody extends Component {
       components.add(rowsToAdd);
     }
   }
+
+  static isComponent(el: HTMLElement) {
+    return toLowerCase(el.tagName) === type;
+  }
 }
-ComponentTableBody.isComponent = el => toLowerCase(el.tagName) === type;