diff --git a/sdk/attestation/azure-security-attestation/azure/security/attestation/_models.py b/sdk/attestation/azure-security-attestation/azure/security/attestation/_models.py
index 602faa67b5a6..0c2ebdc58f70 100644
--- a/sdk/attestation/azure-security-attestation/azure/security/attestation/_models.py
+++ b/sdk/attestation/azure-security-attestation/azure/security/attestation/_models.py
@@ -468,8 +468,6 @@ class AttestationToken(object):
     :keyword str signing_certificate: If specified, the PEM encoded certificate
         used to sign the token.
     :keyword str token: If no body or signer is provided, the string representation of the token.
-    :keyword Type body_type: The underlying type of the body of the 'token' parameter,
-        used to deserialize the underlying body when parsing the token.
 
     If the `signing_key` and `signing_certificate` properties are not specified,
     the token created is unsecured.