1 files changed, 2 insertions, 1 deletions
diff --git a/20/py/d08.py b/20/py/d08.py
index dd9535a..e825e89 100644
--- a/20/py/d08.py
+++ b/20/py/d08.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 import aoc20
 import sys
+from copy import deepcopy
 
 
 def parse(prog):
@@ -33,7 +34,7 @@ def pt1(_in):
 def pt2(_in):
     _in = parse(_in)
     for i in range(len(_in)):
-        prog = _in.copy()
+        prog = deepcopy(_in)
         inst, offset = prog[i]
         if inst == "jmp":
             prog[i][0] = "nop"