diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 6011c5262e77f1a83e812641bf153a6e027dc8d2..5114367ca9561c3240e5edef7364fc2c27818254 100755
--- a/io_scene_gltf2/__init__.py
+++ b/io_scene_gltf2/__init__.py
@@ -15,7 +15,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (0, 9, 70),
+    "version": (0, 9, 71),
     'blender': (2, 81, 6),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
index 3b33872d7572a0487baae20db3f59e0a5347d54e..25b91728150833eae7e666426e72ad56bbb4f250 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
@@ -771,7 +771,7 @@ def extract_primitives(glTF, blender_mesh, blender_object, blender_vertex_groups
                             temp_normals[blender_polygon.index * 3 + 0], temp_normals[blender_polygon.index * 3 + 1],
                             temp_normals[blender_polygon.index * 3 + 2])
 
-                    n_morph = convert_swizzle_normal_and_tangent(n_morph, armature, blender_object, export_settings)
+                    n_morph = convert_swizzle_normal_and_tangent(Vector(n_morph), armature, blender_object, export_settings)
 
                     # Store delta.
                     n_morph -= n