diff --git a/src/pipeline_steps.py b/src/pipeline_steps.py
index 80a3120..cb6fcd1 100644
--- a/src/pipeline_steps.py
+++ b/src/pipeline_steps.py
@@ -267,7 +267,7 @@ def save_output(data_id, map_data: CMAAS_Map, output_dir, feedback_dir, output_t
                     continue
                 feature_mask = np.zeros_like(map_data.poly_segmentation_mask, dtype=np.uint8)
                 feature_mask[map_data.poly_segmentation_mask == legend_index] = 1
-            filepath = os.path.join(output_dir, sanitize_filename(f'{map_data.name}_{feature.label}.tif'))
+            filepath = os.path.join(output_dir, sanitize_filename(f'{map_data.name}_{feature.label}_{feature.type}.tif'))
             io.saveGeoTiff(filepath, feature_mask, map_data.georef.crs, map_data.georef.transform)
             legend_index += 1
     return map_data.name
diff --git a/src/utils.py b/src/utils.py
index 994708e..7f8d76d 100644
--- a/src/utils.py
+++ b/src/utils.py
@@ -102,4 +102,4 @@ def boundingBox(array):
     return [min_xy, max_xy]
 
 def sanitize_filename(filename, repl='□'):
-    return re.sub('[^0-9a-zA-Z _-]+', repl, filename).strip().replace(' ', '_')
+    return re.sub('[^0-9a-zA-Z ._-]+', repl, filename).strip().replace(' ', '_')