diff --git a/Assets/PolyToolkit/Internal/ImportGltf.cs b/Assets/PolyToolkit/Internal/ImportGltf.cs
index 4da7bf3..a087b12 100644
--- a/Assets/PolyToolkit/Internal/ImportGltf.cs
+++ b/Assets/PolyToolkit/Internal/ImportGltf.cs
@@ -716,6 +716,14 @@ static List<MeshPrecursor> CreateMeshPrecursorsFromPrimitive(ImportState state,
 
     BrushDescriptor desc = GltfMaterialConverter.LookupBrushDescriptor(prim.MaterialPtr);
 
+    if (desc != null) {
+      if (desc.m_bFbxExportNormalAsTexcoord1) {
+        // make the gltf look like what the fbx shaders expect
+        // normals moved to texcoord1
+        prim.ReplaceAttribute("NORMAL", "TEXCOORD_1");
+      }
+    }
+
     ushort[] triangles; {
       GltfAccessorBase accessor = prim.IndicesPtr;
       IntRange range = new IntRange { max = accessor.count };
@@ -736,14 +744,6 @@ static List<MeshPrecursor> CreateMeshPrecursorsFromPrimitive(ImportState state,
       var subset = readonlySubset;
       subset.vertices.min -= (subset.vertices.min % 4);
 
-      if (desc != null) {
-        if (desc.m_bFbxExportNormalAsTexcoord1) {
-          // make the gltf look like what the fbx shaders expect
-          // normals moved to texcoord1
-          prim.ReplaceAttribute("NORMAL", "TEXCOORD_1");
-        }
-      }
-
       // Vertex data
       HashSet<string> attributeNames = prim.GetAttributeNames();
       foreach (var semantic in attributeNames) {