diff --git a/python/ql/test/library-tests/frameworks/tornado/taint_test.py b/python/ql/test/library-tests/frameworks/tornado/taint_test.py
index 7e80186a56f..c4f95ec511d 100644
--- a/python/ql/test/library-tests/frameworks/tornado/taint_test.py
+++ b/python/ql/test/library-tests/frameworks/tornado/taint_test.py
@@ -64,6 +64,8 @@ class TaintTest(tornado.web.RequestHandler):
             request.headers.get_list("header-name"), # $ tainted
             request.headers.get_all(), # $ tainted
             [(k, v) for (k, v) in request.headers.get_all()], # $ MISSING: tainted
+            [(k, v) for (k, v) in request.headers.get_all()][0], # $ tainted
+            list([(k, v) for (k, v) in request.headers.get_all()]), # $ MISSING: tainted
 
             # Dict[str, http.cookies.Morsel]
             request.cookies, # $ tainted