diff --git a/objectmanager/ObjectManager.cpp b/objectmanager/ObjectManager.cpp
index cfdf6562..1c54355a 100644
--- a/objectmanager/ObjectManager.cpp
+++ b/objectmanager/ObjectManager.cpp
@@ -1,5 +1,6 @@
 #include <framework/objectmanager/ObjectManager.h>
 #include <framework/serviceinterface/ServiceInterfaceStream.h>
+#include <iomanip>
 #include <cstdlib>
 
 ObjectManager::ObjectManager( void (*setProducer)() ):