diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 5ace460..65f2296 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,3 +1,5 @@
+# Documentation
+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
 version: 2
 updates:
   - package-ecosystem: "github-actions"
diff --git a/.gitignore b/.gitignore
index e9c0566..b85e76b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,6 @@ htmlcov/
 .venv
 .idea
 .ruff_cache
+*.vmrk
+*.eeg
+*.vhdr
diff --git a/docs/conf.py b/docs/conf.py
index 79ae4bc..81be0f1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -12,8 +12,9 @@
 import pybv
 
 curdir = Path(__file__).parent
-sys.path.append((curdir / ".." / "pybv").resolve())
-sys.path.append((curdir / ".." / "sphinxext").resolve())
+
+sys.path.append((curdir.parent / "pybv").resolve().as_posix())
+sys.path.append((curdir / "sphinxext").resolve().as_posix())
 
 # see: https://sphinx.readthedocs.io/en/1.3/extensions.html
 extensions = [
diff --git a/pybv/io.py b/pybv/io.py
index d7a5295..800bb59 100644
--- a/pybv/io.py
+++ b/pybv/io.py
@@ -606,7 +606,7 @@ def _write_vmrk_file(vmrk_fname, eeg_fname, events, meas_date):
         print("", file=fout)
         print("[Common Infos]", file=fout)
         print("Codepage=UTF-8", file=fout)
-        print(f"DataFile={eeg_fname.split(os.sep)[-1]}", file=fout)
+        print(f"DataFile={eeg_fname.name}", file=fout)
         print("", file=fout)
         print("[Marker Infos]", file=fout)
         print(