diff --git a/Assets/VRM10/Runtime/Components/Vrm10Instance/Vrm10Instance.cs b/Assets/VRM10/Runtime/Components/Vrm10Instance/Vrm10Instance.cs
index c871b2650..50e95c47e 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Instance/Vrm10Instance.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Instance/Vrm10Instance.cs
@@ -95,6 +95,7 @@ namespace UniVRM10
             {
                 if (m_runtime == null)
                 {
+                    if (this == null) throw new MissingReferenceException("instance was destroyed");
                     m_runtime = new Vrm10Runtime(this, m_useControlRig);
                 }
                 return m_runtime;
@@ -138,7 +139,11 @@ namespace UniVRM10
 
         private void OnDestroy()
         {
-            Runtime.Dispose();
+            if (m_runtime != null)
+            {
+                m_runtime.Dispose();
+                m_runtime = null;
+            }
         }
 
         private void OnDrawGizmosSelected()