diff --git a/llama_stack/providers/remote/inference/watsonx/watsonx.py b/llama_stack/providers/remote/inference/watsonx/watsonx.py
index d04472936..654d61f34 100644
--- a/llama_stack/providers/remote/inference/watsonx/watsonx.py
+++ b/llama_stack/providers/remote/inference/watsonx/watsonx.py
@@ -22,7 +22,7 @@ class WatsonXInferenceAdapter(LiteLLMOpenAIMixin):
         LiteLLMOpenAIMixin.__init__(
             self,
             litellm_provider_name="watsonx",
-            api_key_from_config=config.api_key.get_secret_value() if config.api_key else None,
+            api_key_from_config=config.auth_credential.get_secret_value() if config.auth_credential else None,
             provider_data_api_key_field="watsonx_api_key",
         )
         self.available_models = None