diff --git a/src/index.ts b/src/index.ts
index b7b6e31..e3cf379 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -113,7 +113,7 @@ export class ChartwerkBarPod extends ChartwerkPod<BarSerie, BarOptions> {
   }
 
   redirectEventToOverlay(): void {
-    this.overlay.node().dispatchEvent(new MouseEvent(d3.event.type, d3.event));
+    this.overlay?.node().dispatchEvent(new MouseEvent(d3.event.type, d3.event));
   }
 
   getTrianglePath(x: number, y: number, length: number, options?: { max: number, min: number }): string {