diff --git a/lib/roi_data_layer/roidb.py b/lib/roi_data_layer/roidb.py
index 97a6a761..dd857e72 100644
--- a/lib/roi_data_layer/roidb.py
+++ b/lib/roi_data_layer/roidb.py
@@ -29,6 +29,7 @@ def prepare_roidb(imdb):
         roidb[i]['height'] = sizes[i][1]
         # need gt_overlaps as a dense array for argmax
         gt_overlaps = roidb[i]['gt_overlaps'].toarray()
+        #
         # max overlap with gt over classes (columns)
         max_overlaps = gt_overlaps.max(axis=1)
         # gt class that had the max overlap