diff --git a/attacks/ecc/smart_attack.py b/attacks/ecc/smart_attack.py
index f6cbb49..5fa54da 100644
--- a/attacks/ecc/smart_attack.py
+++ b/attacks/ecc/smart_attack.py
@@ -6,7 +6,7 @@
 
 # Convert a field element to a p-adic number.
 def _gf_to_qq(n, qq, x):
-    return ZZ(x) if n == 1 else qq(list(map(int, x.list())))
+    return ZZ(x) if n == 1 else qq(list(map(int, tuple(x))))
 
 
 # Lift a point to the p-adic numbers.