diff --git a/modules/util/viirs_surfrad.py b/modules/util/viirs_surfrad.py
index 0f04fb5635104345385c7b9ef8953d5a84637bdd..687143b8b4de8d86e175f63ba6f415868eaac864 100644
--- a/modules/util/viirs_surfrad.py
+++ b/modules/util/viirs_surfrad.py
@@ -92,7 +92,7 @@ def run_all(directory, out_directory, day_night='ANY', pattern='clavrx_*.nc', st
             try:
                 run(h5f, data_params, data_train_tiles, data_valid_tiles,
                     label_params, label_train_tiles, label_valid_tiles,
-                    num_keep_x_tiles=num_keep_x_tiles, tile_width=64, kernel_size=5, day_night=day_night)
+                    num_keep_x_tiles=num_keep_x_tiles, tile_width=64, kernel_size=7, day_night=day_night)
             except Exception as e:
                 print(e)
                 h5f.close()