diff --git a/tests/parser/functions/test_raw_call.py b/tests/parser/functions/test_raw_call.py
index c8e0aa8bad..aaf190ac27 100644
--- a/tests/parser/functions/test_raw_call.py
+++ b/tests/parser/functions/test_raw_call.py
@@ -1,6 +1,7 @@
 import pytest
 from hexbytes import HexBytes
 
+from vyper import compile_code
 from vyper.builtins.functions import eip1167_bytecode
 from vyper.exceptions import ArgumentException, InvalidType, StateAccessViolation
 
@@ -261,36 +262,28 @@ def __default__():
 
 
 # check max_outsize=0 does same thing as not setting max_outsize
+# compile to bytecode and compare bytecode directly.
 def test_max_outsize_0(get_contract):
-    mock1_code = """
+    code1 = """
 @external
-def foo():
-    return
-    """
-    mock2_code = """
-@external
-def foo():
-    raise
+def test_raw_call(_target: address) -> bool:
+    # compile raw_call both ways, with revert_on_failure
+    a: bool = raw_call(_target, method_id("foo()"), revert_on_failure=False)
+    # and without revert_on_failure
+    raw_call(_target, method_id("foo()"))
+    return a
     """
-    code = """
+    # write same code, but with max_outsize=0
+    code2 = """
 @external
-def test_raw_call(_target: address) -> (bool, bool):
-    # compiles
-    a: bool = raw_call(_target, method_id("foo()"), revert_on_failure=False)
-    # should have same behavior
-    b: bool = raw_call(_target, method_id("foo()"), max_outsize=0, revert_on_failure=False)
-    return a, b
+def test_raw_call(_target: address) -> bool:
+    a: bool = raw_call(_target, method_id("foo()"), max_outsize=0, revert_on_failure=False)
+    raw_call(_target, method_id("foo()"), max_outsize=0)
+    return a
     """
-
-    c = get_contract(code)
-
-    mock1 = get_contract(mock1_code)
-    a, b = c.test_raw_call(mock1.address)
-    assert a == b and a is True
-
-    mock2 = get_contract(mock2_code)
-    a, b = c.test_raw_call(mock2.address)
-    assert a == b and a is False
+    output1 = compile_code(code1, ["bytecode", "bytecode_runtime"])
+    output2 = compile_code(code2, ["bytecode", "bytecode_runtime"])
+    assert output1 == output2
 
 
 def test_static_call_fails_nonpayable(get_contract, assert_tx_failed):