diff --git a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GlbScriptedImporter.cs b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GlbScriptedImporter.cs
index 67b9200cd..640d3ef87 100644
--- a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GlbScriptedImporter.cs
+++ b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GlbScriptedImporter.cs
@@ -8,7 +8,11 @@ using UnityEditor.Experimental.AssetImporters;
 namespace UniGLTF
 {
 #if UNITY_2020_2_OR_NEWER
+#if UNIGLTF_DISABLE_DEFAULT_GLB_IMPORTER
     [ScriptedImporter(1, null, overrideExts: new[] { "glb" })]
+#else
+    [ScriptedImporter(1, new[] { "glb" })]
+#endif
 #else
 	[ScriptedImporter(1, new[] { "glb" })]
 #endif
diff --git a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GltfScriptedImporter.cs b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GltfScriptedImporter.cs
index 16d2a3540..d99f3f1e0 100644
--- a/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GltfScriptedImporter.cs
+++ b/Assets/UniGLTF/Editor/UniGLTF/ScriptedImporter/GltfScriptedImporter.cs
@@ -8,7 +8,11 @@ using UnityEditor.Experimental.AssetImporters;
 namespace UniGLTF
 {
 #if UNITY_2020_2_OR_NEWER
+#if UNIGLTF_DISABLE_DEFAULT_GLTF_IMPORTER
     [ScriptedImporter(1, null, overrideExts: new[] { "gltf" })]
+#else
+    [ScriptedImporter(1, new[] { "gltf" })]
+#endif
 #else
 	[ScriptedImporter(1, new[] { "gltf" })]
 #endif