diff --git a/src/main/wacc/backend/asmGenerator.scala b/src/main/wacc/backend/asmGenerator.scala
index 5b3db3e..b7c2f5a 100644
--- a/src/main/wacc/backend/asmGenerator.scala
+++ b/src/main/wacc/backend/asmGenerator.scala
@@ -336,6 +336,7 @@ object asmGenerator {
             chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
           case BinaryOperator.Sub =>
             chain += Subtract(destX, stack.head)
+            chain += Jump(LabelArg(OverflowError.errLabel), Cond.Overflow)
             chain += stack.drop()
             chain += stack.push(destX.size, RAX)
           case BinaryOperator.Mul =>