diff --git a/llvm/test_llvmpy.py b/llvm/test_llvmpy.py
index 79b1239..8719f8b 100644
--- a/llvm/test_llvmpy.py
+++ b/llvm/test_llvmpy.py
@@ -635,6 +635,29 @@ tests.append(TestNative)
 
 # ---------------------------------------------------------------------------
 
+class TestNativeAsm(unittest.TestCase):
+
+    def test_asm(self):
+        m = Module.new('module1')
+
+        foo = m.add_function(Type.function(Type.int(),
+                                           [Type.int(), Type.int()]),
+                             name="foo")
+        bldr = Builder.new(foo.append_basic_block('entry'))
+        x = bldr.add(foo.args[0], foo.args[1])
+        bldr.ret(x)
+
+        att_syntax = m.to_native_assembly()
+        os.environ["LLVMPY_OPTIONS"] = "-x86-asm-syntax=intel"
+        lc.parse_environment_options(sys.argv[0], "LLVMPY_OPTIONS")
+        intel_syntax = m.to_native_assembly()
+
+        self.assertNotEqual(att_syntax, intel_syntax)
+
+tests.append(TestNativeAsm)
+
+# ---------------------------------------------------------------------------
+
 class TestUses(unittest.TestCase):
 
     def test_uses(self):