diff --git a/spine-tk2d/Assets/Spine/Editor/SkeletonAnimationInspector.cs b/spine-tk2d/Assets/Spine/Editor/SkeletonAnimationInspector.cs
index 1574b3cdc..bc6d6b19c 100644
--- a/spine-tk2d/Assets/Spine/Editor/SkeletonAnimationInspector.cs
+++ b/spine-tk2d/Assets/Spine/Editor/SkeletonAnimationInspector.cs
@@ -72,5 +72,7 @@ public class SkeletonAnimationInspector : SkeletonRendererInspector {
 		}
 
 		EditorGUILayout.PropertyField(loop);
+		EditorGUILayout.PropertyField(timeScale);
+		component.timeScale = Math.Max(component.timeScale, 0);
 	}
 }
diff --git a/spine-tk2d/Assets/Spine/SkeletonAnimation.cs b/spine-tk2d/Assets/Spine/SkeletonAnimation.cs
index cb490af27..8810a5383 100644
--- a/spine-tk2d/Assets/Spine/SkeletonAnimation.cs
+++ b/spine-tk2d/Assets/Spine/SkeletonAnimation.cs
@@ -81,7 +81,7 @@ public class SkeletonAnimation : SkeletonRenderer {
 
 		deltaTime *= timeScale;
 		skeleton.Update(deltaTime);
-		state.Update(deltaTime * timeScale);
+		state.Update(deltaTime);
 		state.Apply(skeleton);
 		if (UpdateBones != null) UpdateBones(this);
 		skeleton.UpdateWorldTransform();
diff --git a/spine-unity/Assets/Spine/Editor/SkeletonAnimationInspector.cs b/spine-unity/Assets/Spine/Editor/SkeletonAnimationInspector.cs
index 1574b3cdc..bc6d6b19c 100644
--- a/spine-unity/Assets/Spine/Editor/SkeletonAnimationInspector.cs
+++ b/spine-unity/Assets/Spine/Editor/SkeletonAnimationInspector.cs
@@ -72,5 +72,7 @@ public class SkeletonAnimationInspector : SkeletonRendererInspector {
 		}
 
 		EditorGUILayout.PropertyField(loop);
+		EditorGUILayout.PropertyField(timeScale);
+		component.timeScale = Math.Max(component.timeScale, 0);
 	}
 }
diff --git a/spine-unity/Assets/Spine/SkeletonAnimation.cs b/spine-unity/Assets/Spine/SkeletonAnimation.cs
index cb490af27..8810a5383 100644
--- a/spine-unity/Assets/Spine/SkeletonAnimation.cs
+++ b/spine-unity/Assets/Spine/SkeletonAnimation.cs
@@ -81,7 +81,7 @@ public class SkeletonAnimation : SkeletonRenderer {
 
 		deltaTime *= timeScale;
 		skeleton.Update(deltaTime);
-		state.Update(deltaTime * timeScale);
+		state.Update(deltaTime);
 		state.Apply(skeleton);
 		if (UpdateBones != null) UpdateBones(this);
 		skeleton.UpdateWorldTransform();