diff --git a/litellm/experimental_mcp_client/client.py b/litellm/experimental_mcp_client/client.py
index e703a3956b9..0dc56b6a3bc 100644
--- a/litellm/experimental_mcp_client/client.py
+++ b/litellm/experimental_mcp_client/client.py
@@ -366,6 +366,8 @@ class MCPClient:
                     headers["Authorization"] = f"Bearer {self._mcp_auth_value}"
                 elif self.auth_type == MCPAuth.token:
                     headers["Authorization"] = f"token {self._mcp_auth_value}"
+                elif self.auth_type == MCPAuth.oauth2_token_exchange:
+                    headers["Authorization"] = f"Bearer {self._mcp_auth_value}"
             elif isinstance(self._mcp_auth_value, dict):
                 headers.update(self._mcp_auth_value)
         # Note: aws_sigv4 auth is not handled here — SigV4 requires per-request