diff --git a/examples/03_checkerboard_2d/input_params.yml b/examples/03_checkerboard_2d/input_params.yml
index 5073bda..afb3c80 100644
--- a/examples/03_checkerboard_2d/input_params.yml
+++ b/examples/03_checkerboard_2d/input_params.yml
@@ -13,6 +13,7 @@ data:
 
 output:
   output_path: OUTPUT_FILES/ # path to save output files
+  verbose_level: 1
   log_level: 1 # 0 debug mode, 1 verbose mode
 
 domain: