diff --git a/include/yojimbo_channel.h b/include/yojimbo_channel.h
index 55b35055..fb0549f4 100644
--- a/include/yojimbo_channel.h
+++ b/include/yojimbo_channel.h
@@ -210,7 +210,7 @@ namespace yojimbo
             @param sequence The sequence number of the connection packet that was acked.
          */
 
-        virtual void ProcessAck( uint16_t sequence ) = 0;
+        virtual void ProcessAck( uint16_t ack ) = 0;
 
     public: