diff --git a/val_sim.py b/val_sim.py
index 9425187269678361d96f4178292aa2d8e1a198f6..0091a9a43ad15b9d0baf9be042808cc3b79b2927 100644
--- a/val_sim.py
+++ b/val_sim.py
@@ -4,6 +4,8 @@
 
 import math, random, sys, json
 from statistics import mean, stdev
+import cgitb
+cgitb.enable()
 
 
 event = json.loads(sys.stdin.read())