diff --git a/tests/gswe-timestamp-test.c b/tests/gswe-timestamp-test.c
index 06fafc8..7460c0c 100644
--- a/tests/gswe-timestamp-test.c
+++ b/tests/gswe-timestamp-test.c
@@ -322,21 +322,6 @@ static void
 test_timestamp_now(void)
 {}
 
-static void
-test_timestamp_invalid_property(void)
-{
-    GsweTimestamp *timestamp = gswe_timestamp_new();
-    void *test_prop;
-
-    g_test_expect_message("GLib-GObject", G_LOG_LEVEL_WARNING, "*no property named 'bad-property'*");
-    g_object_set(timestamp, "bad-property", NULL, NULL);
-    g_test_assert_expected_messages();
-
-    g_test_expect_message("GLib-GObject", G_LOG_LEVEL_WARNING, "*no property named 'other-bad-property'*");
-    g_object_get(timestamp, "other-bad-property", &test_prop, NULL);
-    g_test_assert_expected_messages();
-}
-
 int
 main(int argc, char **argv)
 {
@@ -351,7 +336,6 @@ main(int argc, char **argv)
     g_test_add_func("/gswe/timestamp/conv/jd_greg", test_timestamp_conv_jdgreg);
     g_test_add_func("/gswe/timestamp/sidereal", test_timestamp_sidereal);
     g_test_add_func("/gswe/timestamp/now", test_timestamp_now);
-    g_test_add_func("/gswe/timestamp/bad_property", test_timestamp_invalid_property);
 
     return g_test_run();
 }