diff --git a/vyper/venom/passes/dft.py b/vyper/venom/passes/dft.py
index 33ad011711..f6bdee0bae 100644
--- a/vyper/venom/passes/dft.py
+++ b/vyper/venom/passes/dft.py
@@ -52,6 +52,7 @@ class Fence:
     memory: int = 0
     transient: int = 0
     immutables: int = 0
+    balance: int = 0
 
 
 # effects graph