diff --git a/test/test_codegen.py b/test/test_codegen.py
index 90cb68b52436d24a0f82ff582fb1ff28336dffb8..2eeeac9ffe2d6f2b081278e00503f620f4ba1429 100755
--- a/test/test_codegen.py
+++ b/test/test_codegen.py
@@ -1055,6 +1055,17 @@ def test_reduction_adds_deps(ctx_factory):
                                out_dict["z"])
 
 
+def test_loopy_target_doesnot_take_arbit_args(ctx_factory):
+    # see https://github.com/inducer/pytato/issues/142
+    ctx = ctx_factory()
+    cq = cl.CommandQueue(ctx)
+
+    pt_prg = pt.generate_loopy(pt.zeros(10))
+
+    with pytest.raises(ValueError):
+        evt, (out, ) = pt_prg(cq, d="pytato_is_buggy")
+
+
 if __name__ == "__main__":
     if len(sys.argv) > 1:
         exec(sys.argv[1])