diff --git a/front_end/panels/network/components/NetworkEventCoverageInfobar.ts b/front_end/panels/network/components/NetworkEventCoverageInfobar.ts
index 55b8b15b2a6..be175741de2 100644
--- a/front_end/panels/network/components/NetworkEventCoverageInfobar.ts
+++ b/front_end/panels/network/components/NetworkEventCoverageInfobar.ts
@@ -90,7 +90,9 @@ export class NetworkEventCoverageInfobar extends HTMLElement {
   }
 }
 
-customElements.define('devtools-network-event-coverage-infobar', NetworkEventCoverageInfobar);
+if (!customElements.get('devtools-network-event-coverage-infobar')) {
+  customElements.define('devtools-network-event-coverage-infobar', NetworkEventCoverageInfobar);
+}
 
 declare global {
   interface HTMLElementTagNameMap {