diff --git a/.buildkite/test_areas/misc.yaml b/.buildkite/test_areas/misc.yaml
index ce313060d8b7..e04016d6dcc2 100644
--- a/.buildkite/test_areas/misc.yaml
+++ b/.buildkite/test_areas/misc.yaml
@@ -281,6 +281,7 @@ steps:
   - vllm/model_executor/layers/quantization/quark/
   - vllm/multimodal/
   - vllm/outputs.py
+  - vllm/parser/
   - vllm/platforms/
   - vllm/pooling_params.py
   - vllm/ray/
diff --git a/tests/parser/test_parse.py b/tests/parser/test_parse.py
index bac8b64bcbd6..ba8bc1427f2d 100644
--- a/tests/parser/test_parse.py
+++ b/tests/parser/test_parse.py
@@ -6,7 +6,7 @@
 import pytest
 
 from vllm.entrypoints.openai.chat_completion.protocol import ChatCompletionRequest
-from vllm.parser.abstract_parser import _WrappedParser
+from vllm.parser.abstract_parser import DelegatingParser
 from vllm.reasoning.basic_parsers import BaseThinkingReasoningParser
 from vllm.tool_parsers.hermes_tool_parser import Hermes2ProToolParser
 
@@ -65,9 +65,11 @@ def make_request(**overrides):
 
 
 def make_parser(tokenizer, reasoning=False, tool=False):
-    _WrappedParser.reasoning_parser_cls = ThinkReasoningParser if reasoning else None
-    _WrappedParser.tool_parser_cls = Hermes2ProToolParser if tool else None
-    return _WrappedParser(tokenizer)
+    class TestParser(DelegatingParser):
+        reasoning_parser_cls = ThinkReasoningParser if reasoning else None
+        tool_parser_cls = Hermes2ProToolParser if tool else None
+
+    return TestParser(tokenizer)
 
 
 @pytest.mark.parametrize(