diff --git a/AUTHORS b/AUTHORS
index ff82f371..22228c3f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -30,3 +30,4 @@ Felipe Mulinari Rocha Campos <felipecampos@google.com>
 Devesh Kumar Singh <deveshkusingh@gmail.com>
 Yesha Maggi <yesha.maggic@gmail.com>
 Cyril de Catheu <cdecatheu@gmail.com> (https://catheu.tech/)
+Thomas Miedema <thomasmiedema@gmail.com>
diff --git a/tests/test_upload.py b/tests/test_upload.py
index a0690090..7e3ef1d7 100644
--- a/tests/test_upload.py
+++ b/tests/test_upload.py
@@ -378,6 +378,15 @@ def test_prints_skip_message_for_response(
             ),
             id="artifactory_new",
         ),
+        pytest.param(
+            dict(
+                status_code=400,
+                text=(
+                    '{"message":"validation failed: file name has already been taken"}'
+                ),
+            ),
+            id="gitlab_enterprise",
+        ),
     ],
 )
 def test_skip_existing_skips_files_on_repository(response_kwargs):
diff --git a/twine/commands/upload.py b/twine/commands/upload.py
index caa87aa5..3ac2ccb5 100644
--- a/twine/commands/upload.py
+++ b/twine/commands/upload.py
@@ -49,6 +49,8 @@ def skip_upload(
         or (status == 400 and any("updating asset" in x for x in [reason, text]))
         # Artifactory (https://jfrog.com/artifactory/)
         or (status == 403 and "overwrite artifact" in text)
+        # Gitlab Enterprise Edition (https://about.gitlab.com)
+        or (status == 400 and "already been taken" in text)
     )