diff --git a/src/engine.ts b/src/engine.ts
index a3f8d42..57f93be 100644
--- a/src/engine.ts
+++ b/src/engine.ts
@@ -299,7 +299,7 @@ export class RunningEngine {
 
     jump() {
         if (Math.abs(this.camera.cameraDirection.y) < 0.1) {
-            this.camera.cameraDirection.y += 1 * this.frameRateScale;
+            this.camera.cameraDirection.y += 2 * 9.81 * this.frameRateScale;
         }
     }