diff --git a/Assets/UniGLTF/Editor/UniGLTF/Validation/HumanoidValidator.cs b/Assets/UniGLTF/Editor/UniGLTF/Validation/HumanoidValidator.cs
index 10f7c504f..f95a3b422 100644
--- a/Assets/UniGLTF/Editor/UniGLTF/Validation/HumanoidValidator.cs
+++ b/Assets/UniGLTF/Editor/UniGLTF/Validation/HumanoidValidator.cs
@@ -137,7 +137,7 @@ namespace UniGLTF
             {
                 getBoneTransform = humanoid.GetBoneTransform;
             }
-            else if (ExportRoot.GetComponent<Animator>() is Animator animator)
+            else if (ExportRoot.GetComponent<Animator>() is Animator animator && animator != null)
             {
                 getBoneTransform = animator.GetBoneTransform;