diff --git a/news.d/bugfix/1599.windows.md b/news.d/bugfix/1599.windows.md
new file mode 100644
index 000000000..4f0f8de8f
--- /dev/null
+++ b/news.d/bugfix/1599.windows.md
@@ -0,0 +1 @@
+Fixed an issue which caused tests to fail on windows due to case sensitive filepaths.
\ No newline at end of file
diff --git a/plover/gui_qt/dictionaries_widget.py b/plover/gui_qt/dictionaries_widget.py
index 043bb0e08..b1937cd03 100644
--- a/plover/gui_qt/dictionaries_widget.py
+++ b/plover/gui_qt/dictionaries_widget.py
@@ -560,6 +560,7 @@ def _get_dictionary_save_name(self, title, default_name=None,
             default_name = os.path.join(self._file_dialogs_directory, default_name)
         else:
             default_name = self._file_dialogs_directory
+        default_name = normalize_path(default_name)
         new_filename = QFileDialog.getSaveFileName(
             parent=self, caption=title, directory=default_name,
             filter=_dictionary_filters(include_readonly=False),