diff --git a/tensorrt_llm/tokenizer/tokenizer.py b/tensorrt_llm/tokenizer/tokenizer.py
index 9715865c65a1..b88b6b53ea45 100644
--- a/tensorrt_llm/tokenizer/tokenizer.py
+++ b/tensorrt_llm/tokenizer/tokenizer.py
@@ -65,6 +65,12 @@
 class TokenizerBase(PreTrainedTokenizerBase):
     ''' This is a protocol for the tokenizer. Users can implement their own tokenizer by inheriting this class.  '''
 
+    def __repr__(self) -> str:
+        # PreTrainedTokenizerBase.__repr__ reads properties (e.g.
+        # added_tokens_decoder) that TokenizerBase subclasses are not
+        # required to implement, so fall back to a class-name-only repr.
+        return f"{self.__class__.__name__}()"
+
 
 def _reconstruct_transformers_tokenizer(inner_bytes: bytes):
     '''Reconstruct a TransformersTokenizer from cloudpickle-serialized bytes.'''
diff --git a/tests/integration/test_lists/waives.txt b/tests/integration/test_lists/waives.txt
index 5fc9451877e0..38a08cdf149f 100644
--- a/tests/integration/test_lists/waives.txt
+++ b/tests/integration/test_lists/waives.txt
@@ -400,7 +400,6 @@ unittest/executor/test_rpc_proxy.py SKIP (https://nvbugs/5605741)
 unittest/executor/test_rpc_worker.py SKIP (https://nvbugs/5605741)
 unittest/llmapi/test_additional_model_outputs.py -m "gpu2" SKIP (https://nvbugs/6428091)
 unittest/llmapi/test_additional_model_outputs.py::test_additional_model_outputs_integration_pp2 SKIP (https://nvbugs/6427411)
-unittest/llmapi/test_llm.py::test_llm_with_customized_tokenizer SKIP (https://nvbugs/6507080)
 unittest/llmapi/test_llm.py::test_tokenizer_decode_incrementally[/scratch.trt_llm_data/llm-models/falcon-7b-instruct-False-0.95-HF] SKIP (https://nvbugs/6507082)
 unittest/llmapi/test_llm.py::test_tokenizer_decode_incrementally[/scratch.trt_llm_data/llm-models/falcon-7b-instruct-False-0.95-TRTLLM] SKIP (https://nvbugs/6507082)
 unittest/llmapi/test_llm_multi_gpu_pytorch.py -m "gpu2" SKIP (https://nvbugs/6428092)