diff --git a/openeo_driver/datacube.py b/openeo_driver/datacube.py
index 8d4103b1..dfc48804 100644
--- a/openeo_driver/datacube.py
+++ b/openeo_driver/datacube.py
@@ -546,7 +546,7 @@ def get_dimension_names(self) -> List[str]:
         if self._cube is None:
             return [self.DIM_GEOMETRIES]
         else:
-            return list(self._cube.dims)
+            return list(str(d) for d in self._cube.dims)
 
     def get_bounding_box(self) -> Tuple[float, float, float, float]:
         # TODO: cache bounding box?
diff --git a/tests/test_vectorcube.py b/tests/test_vectorcube.py
index b0029ced..cb9425e3 100644
--- a/tests/test_vectorcube.py
+++ b/tests/test_vectorcube.py
@@ -439,6 +439,7 @@ def test_from_geodataframe_default(self, gdf):
     def test_from_geodataframe_columns_for_cube(self, gdf, columns_for_cube, expected_cube):
         vc = DriverVectorCube.from_geodataframe(gdf, columns_for_cube=columns_for_cube)
 
+        assert vc.get_dimension_names() == list(expected_cube["dims"])
         assert vc.to_internal_json() == {
             "geometries": DictSubSet(
                 {