diff --git a/test/XmiFsm.hxx b/test/XmiFsm.hxx
index fa09d86..4ea49b7 100644
--- a/test/XmiFsm.hxx
+++ b/test/XmiFsm.hxx
@@ -1,7 +1,5 @@
 #pragma once
 
-#include <ostream>
-
 #include <cpp_event_framework/Pool.hxx>
 #include <cpp_event_framework/Signal.hxx>
 #include <cpp_event_framework/Statemachine.hxx>