diff --git a/src/robot_interface/endpoints/main_receiver.py b/src/robot_interface/endpoints/main_receiver.py
index befa617..0ebd01a 100644
--- a/src/robot_interface/endpoints/main_receiver.py
+++ b/src/robot_interface/endpoints/main_receiver.py
@@ -27,7 +27,7 @@ class MainReceiver(ReceiverBase):
     def _handle_port_negotiation(message):
         endpoints = [socket.endpoint_description() for socket in state.sockets]
 
-        return {"endpoint": "negotiation/ports", "data": endpoints}
+        return {"endpoint": "negotiate/ports", "data": endpoints}
 
     @staticmethod
     def _handle_negotiation(message):
@@ -42,10 +42,10 @@ class MainReceiver(ReceiverBase):
         """
         # In the future, the sender could send information like the robot's IP address, etc.
 
-        if message["endpoint"] == "negotiation/ports":
+        if message["endpoint"] == "negotiate/ports":
             return MainReceiver._handle_port_negotiation(message)
 
-        return {"endpoint": "negotiation/error", "data": "The requested endpoint is not implemented."}
+        return {"endpoint": "negotiate/error", "data": "The requested endpoint is not implemented."}
 
     def handle_message(self, message):
         if "endpoint" not in message: