diff --git a/src/components/tab-panel/tab-panel.ts b/src/components/tab-panel/tab-panel.ts
index c8641e2c6..3610392a9 100644
--- a/src/components/tab-panel/tab-panel.ts
+++ b/src/components/tab-panel/tab-panel.ts
@@ -22,7 +22,7 @@ export default class SlTabPanel extends LitElement {
   @property() name: string = '';
 
   /** When true, the tab panel will be shown. */
-  @property({ type: Boolean, reflect: true }) active: false = false;
+  @property({ type: Boolean, reflect: true }) active: boolean = false;
 
   connectedCallback() {
     super.connectedCallback();