diff --git a/lib/tcp_rigctl_msg_source_impl.cc b/lib/tcp_rigctl_msg_source_impl.cc
index b806a7f..51c08a9 100644
--- a/lib/tcp_rigctl_msg_source_impl.cc
+++ b/lib/tcp_rigctl_msg_source_impl.cc
@@ -191,7 +191,7 @@ namespace gr
 	close (sock);
       }
       close (listen_sock);
-      delete buf;
+      delete [] buf;
       exit (EXIT_SUCCESS);
     }