diff --git a/tests/test-string-output-visitor.c b/tests/test-string-output-visitor.c
index fa4b4ca288..02766c0f65 100644
--- a/tests/test-string-output-visitor.c
+++ b/tests/test-string-output-visitor.c
@@ -95,7 +95,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data,
     Error *err = NULL;
     char *str;
 
-    for (i = 0; i < sizeof(value) / sizeof(value[0]); i++) {
+    for (i = 0; i < ARRAY_SIZE(value); i++) {
         *tmp = g_malloc0(sizeof(**tmp));
         (*tmp)->value = value[i];
         tmp = &(*tmp)->next;