diff --git a/17-Chernobyl/Code/hashbrek.py b/17-Chernobyl/Code/hashbrek.py
index 0353b99..1e69e5c 100644
--- a/17-Chernobyl/Code/hashbrek.py
+++ b/17-Chernobyl/Code/hashbrek.py
@@ -13,7 +13,7 @@ def hash(byts):
 while True:
    try:
       line = input("> ")
-      if (line[0] == '~'):
+      if (len(line) and line[0] == '~'):
          h = hash(bytes.fromhex(line[1:]));
       else:
          h = hash(line.encode())