diff --git a/B07_wf4_DesignDetail/openwebcad/src/inputController/input-controller.ts b/B07_wf4_DesignDetail/openwebcad/src/inputController/input-controller.ts
index f27ff62d..55c0592a 100644
--- a/B07_wf4_DesignDetail/openwebcad/src/inputController/input-controller.ts
+++ b/B07_wf4_DesignDetail/openwebcad/src/inputController/input-controller.ts
@@ -218,7 +218,9 @@ export class InputController {
 			return; // We can't zoom by zero delta
 		}
 		const drawController = getScreenCanvasDrawController();
-		drawController.zoomScreen(evt.deltaY);
+		// Aislo: wheel direction is inverted on purpose - pulling the wheel zooms in, pushing
+		// zooms out, matching the B04/B05 maps and the B06 cross sections (2026-08-02).
+		drawController.zoomScreen(-evt.deltaY);
 	}
 
 	public handleMouseDown(evt: MouseEvent) {