diff --git a/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py b/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
index 38ad1f4ce..8f1fd4428 100644
--- a/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
+++ b/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives.py
@@ -78,9 +78,12 @@ def gather_primitives(
             material = get_final_material(blender_mesh, blender_mat, internal_primitive['uvmap_attributes_index'], base_material, material_info["uv_info"], export_settings)
         else:
             # UDIM case
-            base_material, material_info, unique_material_id = udim_material
+            base_material, material_info, unique_material_id, tile = udim_material
             material = get_final_material(blender_mesh, unique_material_id, internal_primitive['uvmap_attributes_index'], base_material, material_info["uv_info"], export_settings)
 
+            # Force change name of material to get the tile number in the name
+            material.name = material.name + "." + tile
+
         primitive = gltf2_io.MeshPrimitive(
             attributes=internal_primitive['attributes'],
             extensions=__gather_extensions(blender_mesh, internal_primitive['material'], internal_primitive['uvmap_attributes_index'], export_settings),
diff --git a/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py b/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
index 84d8454ad..b5834a3c8 100644
--- a/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
+++ b/addons/io_scene_gltf2/blender/exp/gltf2_blender_gather_primitives_extract.py
@@ -739,7 +739,7 @@ def manage_material_info(self):
                         else:
                             self.export_settings['log'].warning('We are not managing this case (UDIM for {})'.format(tex))
 
-                    self.additional_materials.append((new_material, material_info, int(str(id(base_material)) + str(u) + str(v))))
+                    self.additional_materials.append((new_material, material_info, int(str(id(base_material)) + str(u) + str(v)), "10" + str(v) + str(u+1)))
 
 
         # Now, we need to add additional Vertex Color if needed