diff --git a/tests-clar/object/tree/walk.c b/tests-clar/object/tree/walk.c
index a0ea64cf3..58b0bca4c 100644
--- a/tests-clar/object/tree/walk.c
+++ b/tests-clar/object/tree/walk.c
@@ -59,7 +59,7 @@ static int treewalk_stop_cb(
 
 	(*count) += 1;
 
-	return (*count == 2);
+	return (*count == 2) ? -1 : 0;
 }
 
 static int treewalk_stop_immediately_cb(