diff --git a/tests/unit/compiler/venom/test_duplicate_operands.py b/tests/unit/compiler/venom/test_duplicate_operands.py
index fbff0835d2..ab55649dae 100644
--- a/tests/unit/compiler/venom/test_duplicate_operands.py
+++ b/tests/unit/compiler/venom/test_duplicate_operands.py
@@ -1,6 +1,8 @@
 from vyper.compiler.settings import OptimizationLevel
 from vyper.venom import generate_assembly_experimental
+from vyper.venom.analysis.analysis import IRAnalysesCache
 from vyper.venom.context import IRContext
+from vyper.venom.passes.store_expansion import StoreExpansionPass
 
 
 def test_duplicate_operands():
@@ -13,7 +15,7 @@ def test_duplicate_operands():
     %3 = mul %1, %2
     stop
 
-    Should compile to: [PUSH1, 10, DUP1, DUP1, DUP1, ADD, MUL, POP, STOP]
+    Should compile to: [PUSH1, 10, DUP1, DUP2, ADD, MUL, POP, STOP]
     """
     ctx = IRContext()
     fn = ctx.create_function("test")
@@ -23,5 +25,9 @@ def test_duplicate_operands():
     bb.append_instruction("mul", sum_, op)
     bb.append_instruction("stop")
 
-    asm = generate_assembly_experimental(ctx, optimize=OptimizationLevel.GAS)
-    assert asm == ["PUSH1", 10, "DUP1", "DUP1", "ADD", "MUL", "POP", "STOP"]
+    ac = IRAnalysesCache(fn)
+    StoreExpansionPass(ac, fn).run_pass()
+
+    optimize = OptimizationLevel.GAS
+    asm = generate_assembly_experimental(ctx, optimize=optimize)
+    assert asm == ["PUSH1", 10, "DUP1", "DUP2", "ADD", "MUL", "POP", "STOP"]
diff --git a/tests/unit/compiler/venom/test_stack_cleanup.py b/tests/unit/compiler/venom/test_stack_cleanup.py
index 6015cf1c41..7198861771 100644
--- a/tests/unit/compiler/venom/test_stack_cleanup.py
+++ b/tests/unit/compiler/venom/test_stack_cleanup.py
@@ -9,7 +9,8 @@ def test_cleanup_stack():
     bb = fn.get_basic_block()
     ret_val = bb.append_instruction("param")
     op = bb.append_instruction("store", 10)
-    bb.append_instruction("add", op, op)
+    op2 = bb.append_instruction("store", op)
+    bb.append_instruction("add", op, op2)
     bb.append_instruction("ret", ret_val)
 
     asm = generate_assembly_experimental(ctx, optimize=OptimizationLevel.GAS)
diff --git a/vyper/venom/venom_to_assembly.py b/vyper/venom/venom_to_assembly.py
index 934c10d1e3..d024cd8475 100644
--- a/vyper/venom/venom_to_assembly.py
+++ b/vyper/venom/venom_to_assembly.py
@@ -12,8 +12,8 @@
 )
 from vyper.utils import MemoryPositions, OrderedSet
 from vyper.venom.analysis.analysis import IRAnalysesCache
-from vyper.venom.analysis.liveness import LivenessAnalysis
 from vyper.venom.analysis.equivalent_vars import VarEquivalenceAnalysis
+from vyper.venom.analysis.liveness import LivenessAnalysis
 from vyper.venom.basicblock import (
     IRBasicBlock,
     IRInstruction,
@@ -26,7 +26,7 @@
 from vyper.venom.passes.normalization import NormalizationPass
 from vyper.venom.stack_model import StackModel
 
-DEBUG_SHOW_COST = True
+DEBUG_SHOW_COST = False
 if DEBUG_SHOW_COST:
     import sys
 
@@ -251,7 +251,7 @@ def _emit_input_operands(
 
         # to validate store expansion invariant -
         # each op is emitted at most once.
-        seen = set()
+        seen: set[IROperand] = set()
 
         for op in ops:
             if isinstance(op, IRLabel):