diff --git a/tabby-terminal/src/api/baseTerminalTab.component.ts b/tabby-terminal/src/api/baseTerminalTab.component.ts
index e3e56de0..54043612 100644
--- a/tabby-terminal/src/api/baseTerminalTab.component.ts
+++ b/tabby-terminal/src/api/baseTerminalTab.component.ts
@@ -647,9 +647,9 @@ export class BaseTerminalTabComponent extends BaseTabComponent implements OnInit
                 let wheelDeltaY = 0
 
                 if ('wheelDeltaY' in event) {
-                    wheelDeltaY = (event as MouseWheelEvent)['wheelDeltaY']
+                    wheelDeltaY = (event as WheelEvent)['wheelDeltaY']
                 } else {
-                    wheelDeltaY = (event as MouseWheelEvent)['deltaY']
+                    wheelDeltaY = (event as WheelEvent).deltaY
                 }
 
                 if (event.altKey) {