diff --git a/test/src/unit-renderer.cpp b/test/src/unit-renderer.cpp
index 968f888..9c4f19f 100644
--- a/test/src/unit-renderer.cpp
+++ b/test/src/unit-renderer.cpp
@@ -55,6 +55,7 @@ TEST_CASE("types") {
 		CHECK( env.render("{% for type, name in relatives %}{{ type }}: {{ name }}, {% endfor %}", data) == "brother: Chris, mother: Maria, sister: Jenny, " );
 		CHECK( env.render("{% for v in vars %}{% if v > 0 %}+{% endif %}{% endfor %}", data) == "+++" );
 		CHECK( env.render("{% for name in names %}{{ index }}: {{ name }}{% if not is_last %}, {% endif %}{% endfor %}!", data) == "0: Jeff, 1: Seb!" );
+		CHECK( env.render("{% for name in names %}{{ index }}: {{ name }}{% if is_last == false %}, {% endif %}{% endfor %}!", data) == "0: Jeff, 1: Seb!" );
 
 		data["empty_loop"] = {};
 		CHECK( env.render("{% for name in empty_loop %}a{% endfor %}", data) == "" );