diff --git a/src/slic3r/GUI/NotificationManager.hpp b/src/slic3r/GUI/NotificationManager.hpp
index 81c57eccb..79299182e 100644
--- a/src/slic3r/GUI/NotificationManager.hpp
+++ b/src/slic3r/GUI/NotificationManager.hpp
@@ -5,6 +5,9 @@
 #include "I18N.hpp"
 
 #include <libslic3r/ObjectID.hpp>
+#include <libslic3r/Technologies.hpp>
+
+#include <wx/time.h>
 
 #include <string>
 #include <vector>
@@ -458,4 +461,4 @@ private:
 }//namespace GUI
 }//namespace Slic3r
 
-#endif //slic3r_GUI_NotificationManager_hpp_
\ No newline at end of file
+#endif //slic3r_GUI_NotificationManager_hpp_
diff --git a/src/slic3r/GUI/UnsavedChangesDialog.cpp b/src/slic3r/GUI/UnsavedChangesDialog.cpp
index b9ee47d9b..bb1abcf3d 100644
--- a/src/slic3r/GUI/UnsavedChangesDialog.cpp
+++ b/src/slic3r/GUI/UnsavedChangesDialog.cpp
@@ -5,6 +5,7 @@
 #include <vector>
 #include <boost/algorithm/string.hpp>
 #include <boost/optional.hpp>
+#include <boost/nowide/convert.hpp>
 
 #include "libslic3r/PrintConfig.hpp"
 #include "libslic3r/PresetBundle.hpp"