diff --git a/spine-ts/spine-core/src/PhysicsConstraint.ts b/spine-ts/spine-core/src/PhysicsConstraint.ts
index ea3f72bc1..c8da7636c 100644
--- a/spine-ts/spine-core/src/PhysicsConstraint.ts
+++ b/spine-ts/spine-core/src/PhysicsConstraint.ts
@@ -215,7 +215,7 @@ export class PhysicsConstraint extends Constraint<PhysicsConstraint, PhysicsCons
 								d = Math.pow(p.damping, 60 * t);
 								m = t * p.massInverse;
 								e = p.strength;
-								const w = f * p.wind, g = f * (Skeleton.yDown ? -p.gravity : p.gravity);
+								const w = f * p.wind, g = f * p.gravity * Skeleton.yDir;
 								ax = (w * skeleton.windX + g * skeleton.gravityX) * skeleton.scaleX;
 								ay = (w * skeleton.windY + g * skeleton.gravityY) * skeleton.scaleY;
 							}
diff --git a/spine-ts/spine-core/src/Skeleton.ts b/spine-ts/spine-core/src/Skeleton.ts
index 773c5040d..638c30758 100644
--- a/spine-ts/spine-core/src/Skeleton.ts
+++ b/spine-ts/spine-core/src/Skeleton.ts
@@ -93,7 +93,7 @@ export class Skeleton {
 	 *
 	 * Bones that do not inherit scale are still affected by this property. */
 	public get scaleY () {
-		return Skeleton.yDown ? -this._scaleY : this._scaleY;
+		return this._scaleY * Skeleton.yDir;
 	}
 
 	public set scaleY (scaleY: number) {