diff --git a/lanbrowsing/lisa/netmanager.h b/lanbrowsing/lisa/netmanager.h
index 0a56e03f..10656e83 100644
--- a/lanbrowsing/lisa/netmanager.h
+++ b/lanbrowsing/lisa/netmanager.h
@@ -16,6 +16,7 @@
 #ifndef NETMANAGER_H
 #define NETMANAGER_H
 
+#include <functional>
 #include <list>
 
 #include "netscanner.h"
diff --git a/lanbrowsing/lisa/netscanner.h b/lanbrowsing/lisa/netscanner.h
index 7a973ab5..7aa03d34 100644
--- a/lanbrowsing/lisa/netscanner.h
+++ b/lanbrowsing/lisa/netscanner.h
@@ -16,6 +16,7 @@
 #ifndef NETSCANNER_H
 #define NETSCANNER_H
 
+#include <functional>
 #include <list>
 
 #include "mystring.h"