diff --git a/tests/test-keyval.c b/tests/test-keyval.c
index e331a84149..f02bdf7029 100644
--- a/tests/test-keyval.c
+++ b/tests/test-keyval.c
@@ -182,6 +182,13 @@ static void test_keyval_parse(void)
     error_free_or_abort(&err);
     g_assert(!qdict);
 
+    /* Implied key's value can't have comma (qemu_opts_parse(): it can) */
+    /* BUG: it can */
+    qdict = keyval_parse("val,,ue", "implied", &error_abort);
+    g_assert_cmpuint(qdict_size(qdict), ==, 1);
+    g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "val,ue");
+    qobject_unref(qdict);
+
     /* Empty key is not an implied key */
     qdict = keyval_parse("=val", "implied", &err);
     error_free_or_abort(&err);