diff --git a/src/lib/ebus/message.h b/src/lib/ebus/message.h
index 5cc5fb5b..fcd60ac9 100644
--- a/src/lib/ebus/message.h
+++ b/src/lib/ebus/message.h
@@ -58,7 +58,6 @@ namespace ebusd {
  * template class.
  */
 
-using std::binary_function;
 using std::priority_queue;
 using std::deque;