diff --git a/src/dispatcher.h b/src/dispatcher.h
index 4a3b7e0..8476628 100644
--- a/src/dispatcher.h
+++ b/src/dispatcher.h
@@ -1,6 +1,7 @@
 #pragma once
 #include <gtkmm.h>
 #include <mutex>
+#include <functional>
 #include <list>
 
 class Dispatcher {
diff --git a/src/menu.h b/src/menu.h
index eab6cd6..5afa7a2 100644
--- a/src/menu.h
+++ b/src/menu.h
@@ -1,6 +1,7 @@
 #pragma once
 #include <string>
 #include <unordered_map>
+#include <functional>
 #include <gtkmm.h>
 
 class Menu {
diff --git a/src/selection_dialog.h b/src/selection_dialog.h
index 49d7113..c041f4a 100644
--- a/src/selection_dialog.h
+++ b/src/selection_dialog.h
@@ -1,6 +1,7 @@
 #pragma once
 #include "gtkmm.h"
 #include <unordered_map>
+#include <functional>
 
 class SelectionDialogBase {
   class ListViewText : public Gtk::TreeView {
diff --git a/src/tooltips.h b/src/tooltips.h
index ff24ae2..34a3451 100644
--- a/src/tooltips.h
+++ b/src/tooltips.h
@@ -2,6 +2,7 @@
 #include "gtkmm.h"
 #include <string>
 #include <list>
+#include <functional>
 
 class Tooltip {
 public: