diff --git a/tests/snippets/json_snippet.py b/tests/snippets/json_snippet.py
index 9910bcc274..917556a478 100644
--- a/tests/snippets/json_snippet.py
+++ b/tests/snippets/json_snippet.py
@@ -31,8 +31,7 @@ assert '{}' == json.dumps({})
 assert 1 == json.loads("1")
 assert -1 == json.loads("-1")
 assert 1.0 == json.loads("1.0")
-# TODO: uncomment once negative floats are implemented
-# assert -1.0 == json.loads("-1.0")
+assert -1.0 == json.loads("-1.0")
 assert "str" == json.loads('"str"')
 assert True is json.loads('true')
 assert False is json.loads('false')