diff --git a/types/d3-zoom/d3-zoom-tests.ts b/types/d3-zoom/d3-zoom-tests.ts
index de213d5149..185b9fd45a 100644
--- a/types/d3-zoom/d3-zoom-tests.ts
+++ b/types/d3-zoom/d3-zoom-tests.ts
@@ -104,7 +104,7 @@ function zoomedCanvas(this: HTMLCanvasElement, d: CanvasDatum) {
 
 let canvasZoom: d3Zoom.ZoomBehavior<HTMLCanvasElement, CanvasDatum>;
 
-canvasZoom = d3Zoom.zoom()
+canvasZoom = d3Zoom.zoom<HTMLCanvasElement, CanvasDatum>()
     .scaleExtent([1 / 2, 4])
     .on('zoom', zoomedCanvas);