diff --git a/src/systems/CameraSystem.ts b/src/systems/CameraSystem.ts
index 3e1d873..ca995ef 100644
--- a/src/systems/CameraSystem.ts
+++ b/src/systems/CameraSystem.ts
@@ -66,9 +66,11 @@ export class CameraSystem {
     this.scene.input.on('wheel', (ptr: Phaser.Input.Pointer, _objs: unknown, _dx: number, dy: number) => {
       const newZoom = Phaser.Math.Clamp(cam.zoom - Math.sign(dy) * ZOOM_STEP, MIN_ZOOM, MAX_ZOOM)
       if (newZoom === cam.zoom) return
+      const worldX = ptr.worldX  // capture BEFORE zoom changes the value
+      const worldY = ptr.worldY
       cam.setZoom(newZoom)
-      cam.scrollX = ptr.worldX - ptr.x / newZoom
-      cam.scrollY = ptr.worldY - ptr.y / newZoom
+      cam.scrollX = worldX - ptr.x / newZoom
+      cam.scrollY = worldY - ptr.y / newZoom
       const centerX = cam.scrollX + cam.width  / (2 * cam.zoom)
       const centerY = cam.scrollY + cam.height / (2 * cam.zoom)
       console.log(`[zoom] ptr=(${ptr.x.toFixed(0)},${ptr.y.toFixed(0)}) world=(${ptr.worldX.toFixed(0)},${ptr.worldY.toFixed(0)}) center=(${centerX.toFixed(0)},${centerY.toFixed(0)}) zoom=${cam.zoom.toFixed(2)}`)