diff --git a/gio/tests/gdbus-test-codegen.c b/gio/tests/gdbus-test-codegen.c
index 0681e7ec8..0701f50f1 100644
--- a/gio/tests/gdbus-test-codegen.c
+++ b/gio/tests/gdbus-test-codegen.c
@@ -869,7 +869,7 @@ check_bar_proxy (FooiGenBar *proxy,
                 "s", "a string",
                 "o", "/a/path",
                 "g", "asig",
-                "ay", g_variant_new_parsed ("[byte 0x65, 0x67]"),
+                "ay", "eg",
                 "as", array_of_strings,
                 "ao", array_of_objpaths,
                 "ag", g_variant_new_parsed ("[@g 'ass', 'git']"),