diff --git a/vllm_omni/quantization/component_config.py b/vllm_omni/quantization/component_config.py
index 87564ef46..28c33d637 100644
--- a/vllm_omni/quantization/component_config.py
+++ b/vllm_omni/quantization/component_config.py
@@ -80,6 +80,7 @@ class ComponentQuantizationConfig(QuantizationConfig):
         component_configs: dict[str, QuantizationConfig | None],
         default_config: QuantizationConfig | None = None,
     ) -> None:
+        super().__init__()
         self._components = component_configs
         self._default = default_config
         self._sorted_prefixes = sorted(self._components.keys(), key=len, reverse=True)