diff --git a/signal_webhook/signal.py b/signal_webhook/signal.py
index c2a852c..9bfef32 100644
--- a/signal_webhook/signal.py
+++ b/signal_webhook/signal.py
@@ -11,7 +11,7 @@ def signal_send(recipients: list[str], message: str) -> None:
     def to_dest(recipient: str) -> dict[str, str]:
         if recipient.startswith("G:"):
             return {"groupId": recipient[2:]}
-        return {"userId": recipient}
+        return {"recipient": [recipient]}
 
     with socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) as signal_json:
         signal_json.connect(configuration.SIGNAL_SOCKET)