diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0ad1e44..234c3af 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,26 +13,26 @@ jobs:
   setup:
     runs-on: ubuntu-latest
     outputs:
-      version: ${{ steps.check-tag.outputs.version }}
+      tag: ${{ steps.check-tag.outputs.tag }}
     steps:
     
       - name: Check tag
         id: check-tag
         run: |
           if [[ ${{ github.ref }} == refs/tags/v* ]]; then
-            VERSION=_$(echo ${{ github.ref }} | sed -e "s#refs/tags/##g")
+            TAG=$(echo ${{ github.ref }} | sed -e "s#refs/tags/##g")
           else
-            VERSION=""
+            TAG=$(echo ${{ github.sha }} | cut -c1-7)
           fi
-          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
         shell: bash
       
       - name: Create Release Draft
         id: create-release
         uses: softprops/action-gh-release@v1
         with:
-          tag_name: ${{ github.ref }}
-          name: ${{ github.ref }}
+          tag_name: ${{ steps.check-tag.outputs.tag }}
+          name: ${{ steps.check-tag.outputs.tag }}
           body: |
             Changelog
             - First Change
@@ -81,10 +81,10 @@ jobs:
         with:
           directory: 'release'
           type: 'zip'
-          filename: '${{ env.ZIP_NAME }}${{ needs.setup.outputs.version }}_${{ runner.os }}.zip'
+          filename: '${{ env.ZIP_NAME }}_${{ needs.setup.outputs.tag }}_${{ runner.os }}.zip'
           exclusions: '*.git* .gitignore'
 
       - name: Upload Release Asset
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: gh release upload ${{ github.ref }} release/${{ env.ZIP_NAME }}${{ needs.setup.outputs.version }}_${{ runner.os }}.zip
+        run: gh release upload ${{ needs.setup.outputs.tag }} release/${{ env.ZIP_NAME }}_${{ needs.setup.outputs.tag }}_${{ runner.os }}.zip
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 24fd210..1afc832 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,11 +20,7 @@ jobs:
         run: pip install flake8 pylint
         
       - name: Run flake8
-        uses: suo/flake8-github-action@releases/v1
-        with:
-          checkName: 'flake8'
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: flake8
 
       - name: Run pylint
         run: python for_dev/lint.py --path=addons/blender_dds_addon
diff --git a/.gitignore b/.gitignore
index 1f4bf30..c97db0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,9 +11,7 @@ htmlcov
 
 # textures
 *.dds
-!tests/test.dds
-!tests/cube.dds
-!tests/array.dds
+!tests/*.dds
 *.tga
 *.png
 *.jpg
diff --git a/addons/blender_dds_addon/__init__.py b/addons/blender_dds_addon/__init__.py
index 409d25a..fbc3991 100644
--- a/addons/blender_dds_addon/__init__.py
+++ b/addons/blender_dds_addon/__init__.py
@@ -8,7 +8,7 @@
 bl_info = {
     'name': 'DDS textures',
     'author': 'Matyalatte',
-    'version': (0, 3, 0),
+    'version': (0, 3, 1),
     'blender': (2, 83, 20),
     'location': 'Image Editor > Sidebar > DDS Tab',
     'description': 'Import and export .dds files',
diff --git a/addons/blender_dds_addon/directx/dds.py b/addons/blender_dds_addon/directx/dds.py
index b6c8c5d..eb85b0d 100644
--- a/addons/blender_dds_addon/directx/dds.py
+++ b/addons/blender_dds_addon/directx/dds.py
@@ -421,7 +421,7 @@ def assemble(self, is_array, size):
 
     def get_texture_type(self):
         if self.is_3d():
-            return "valume"
+            return "volume"
         if self.is_cube():
             t = "cube"
         else:
diff --git a/changelog.txt b/changelog.txt
index 3d84918..9928af4 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,6 @@
+ver 0.3.1
+- Fixed an error when loading volume textures.
+
 ver 0.3.0
 - Support texture arrays and volume textures.
 
diff --git a/docs/README.md b/docs/README.md
index e221350..3830b56 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,4 +1,4 @@
-# Blender-DDS-Addon v0.3.0
+# Blender-DDS-Addon v0.3.1
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 ![build](https://github.com/matyalatte/Blender-DDS-Addon/actions/workflows/build.yml/badge.svg)
diff --git a/tests/test.dds b/tests/2d.dds
similarity index 100%
rename from tests/test.dds
rename to tests/2d.dds
diff --git a/tests/array.dds b/tests/2d_array.dds
similarity index 100%
rename from tests/array.dds
rename to tests/2d_array.dds
diff --git a/tests/cube_array.dds b/tests/cube_array.dds
new file mode 100644
index 0000000..2675cdc
Binary files /dev/null and b/tests/cube_array.dds differ
diff --git a/tests/test_dds.py b/tests/test_dds.py
index ba6c400..820e464 100644
--- a/tests/test_dds.py
+++ b/tests/test_dds.py
@@ -15,7 +15,7 @@
 
 
 def get_test_dds():
-    test_file = os.path.join("tests", "test.dds")
+    test_file = os.path.join("tests", "2d.dds")
     return test_file
 
 
@@ -58,12 +58,14 @@ def test_io_cubemap():
     os.remove("saved.dds")
 
 
-def test_io_array():
-    """Test with cubemap."""
-    tex = import_dds.load_dds(os.path.join("tests", "array.dds"))
+@pytest.mark.parametrize("texture_type", ["2d_array", "volume", "cube_array"])
+def test_io_array(texture_type):
+    """Test with texture arrays."""
+    tex = import_dds.load_dds(os.path.join("tests", texture_type + ".dds"))
+    assert tex.dds_props.texture_type == texture_type
     extra_texture_list = tex.dds_props.texture_list
     extra_texture_list = [t.texture for t in extra_texture_list]
-    tex = export_dds.save_dds(tex, "saved.dds", "BC1_UNORM", texture_type="2d_array",
+    tex = export_dds.save_dds(tex, "saved.dds", "BC1_UNORM", texture_type=texture_type,
                               extra_texture_list=extra_texture_list)
     os.remove("saved.dds")
 
diff --git a/tests/volume.dds b/tests/volume.dds
new file mode 100644
index 0000000..aa9b1c5
Binary files /dev/null and b/tests/volume.dds differ