diff --git a/pyVoIP/SIP/client.py b/pyVoIP/SIP/client.py
index 04943a2..e45d6cb 100644
--- a/pyVoIP/SIP/client.py
+++ b/pyVoIP/SIP/client.py
@@ -478,6 +478,7 @@ def gen_digest(
                 "nonce": nonce,
                 "algorithm": algo,
                 "digest": hash_func(HA3.encode("utf8")),
+                "uri": uri,
                 "username": username,
                 "opaque": opaque,
             }