diff --git a/preprocessor_config.json b/preprocessor_config.json
index d163653..48d7c9b 100644
--- a/preprocessor_config.json
+++ b/preprocessor_config.json
@@ -25,7 +25,7 @@
   ],
   "keep_ratio": false,
   "padding_value": 0,
-  "reduce_zero_label": false,
+  "reduce_zero_label": true,
   "resample": 2,
   "segmentation_padding_value": -100,
   "size_divisor": 32