diff --git a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/TextureExtractor.cs b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/TextureExtractor.cs
index 3ec448ba4..d474f79b8 100644
--- a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/TextureExtractor.cs
+++ b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/TextureExtractor.cs
@@ -63,10 +63,14 @@ namespace UniGLTF
                     case TextureImportTypes.StandardMap:
                         {
                             // write converted texture
-                            var (_, subAsset) = m_subAssets.FirstOrDefault(x => x.Equals(key));
+                            var (_, subAsset) = m_subAssets.FirstOrDefault(kv => kv.Key.Equals(key));
+                            if (subAsset == null)
+                            {
+                                throw new KeyNotFoundException();
+                            }
                             targetPath = m_textureDirectory.Child($"{key.Name}.png");
                             File.WriteAllBytes(targetPath.FullPath, subAsset.EncodeToPNG().ToArray());
-                            // targetPath.ImportAsset();
+                            targetPath.ImportAsset();
                             break;
                         }
 
@@ -75,7 +79,7 @@ namespace UniGLTF
                             // write original bytes
                             targetPath = m_textureDirectory.Child($"{key.Name}{param.Ext}");
                             File.WriteAllBytes(targetPath.FullPath, param.Index0().Result.ToArray());
-                            // targetPath.ImportAsset();
+                            targetPath.ImportAsset();
                             break;
                         }
                 }
diff --git a/Assets/UniGLTF/Tests/UniGLTF/TextureTests.cs b/Assets/UniGLTF/Tests/UniGLTF/TextureTests.cs
index 01180fabd..3b5eb1f65 100644
--- a/Assets/UniGLTF/Tests/UniGLTF/TextureTests.cs
+++ b/Assets/UniGLTF/Tests/UniGLTF/TextureTests.cs
@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using System.Linq;
 using NUnit.Framework;
@@ -92,7 +93,8 @@ namespace UniGLTF
             // extractor
             var extractor = new TextureExtractor(parser, UnityPath.FromUnityPath(""), loader.TextureFactory.Textures.Select(x => (new SubAssetKey(typeof(Texture2D), x.Texture.name), x.Texture)).ToArray());
             var m = GltfTextureEnumerator.EnumerateTexturesForMaterial(parser, 0).FirstOrDefault(x => x.Item1.Name == "texture_1.standard");
-            extractor.Extract(m.Item1, m.Item2);
+
+            Assert.Catch<NotImplementedException>(() => extractor.Extract(m.Item1, m.Item2));
         }
     }
 }