diff --git a/src/Test/TestSafeRe.py b/src/Test/TestSafeRe.py
index 111805fd..ae2e9c15 100644
--- a/src/Test/TestSafeRe.py
+++ b/src/Test/TestSafeRe.py
@@ -11,7 +11,7 @@ class TestSafeRe:
         )
         assert SafeRe.match(".+/data.json", "data/users/1J3rJ8ecnwH2EPYa6MrgZttBNc61ACFiCj/data.json")
 
-    @pytest.mark.parametrize("pattern", ["([a-zA-Z]+)*", "(a|aa)+*", "(a|a?)+", "(.*a){10}"])
+    @pytest.mark.parametrize("pattern", ["([a-zA-Z]+)*", "(a|aa)+*", "(a|a?)+", "(.*a){10}", "((?!json).)*$", "(\w+\d+)+C"])
     def testUnsafeMatch(self, pattern):
         with pytest.raises(SafeRe.UnsafePatternError) as err:
             SafeRe.match(pattern, "aaaaaaaaaaaaaaaaaaaaaaaa!")