diff --git a/src/slic3r/GUI/PrintHostDialogs.hpp b/src/slic3r/GUI/PrintHostDialogs.hpp
index 54eeaceae..0f7308c18 100644
--- a/src/slic3r/GUI/PrintHostDialogs.hpp
+++ b/src/slic3r/GUI/PrintHostDialogs.hpp
@@ -7,6 +7,8 @@
 #include <wx/string.h>
 #include <wx/event.h>
 #include <wx/dialog.h>
+#include <wx/combobox.h>
+#include <wx/arrstr.h>
 
 #include "GUI.hpp"
 #include "GUI_Utils.hpp"
diff --git a/src/slic3r/Utils/OctoPrint.hpp b/src/slic3r/Utils/OctoPrint.hpp
index 720a47a66..b1b003114 100644
--- a/src/slic3r/Utils/OctoPrint.hpp
+++ b/src/slic3r/Utils/OctoPrint.hpp
@@ -3,6 +3,7 @@
 
 #include <string>
 #include <wx/string.h>
+#include <wx/arrstr.h>
 #include <boost/optional.hpp>
 
 #include "PrintHost.hpp"
diff --git a/src/slic3r/Utils/PrintHost.hpp b/src/slic3r/Utils/PrintHost.hpp
index e160cbb35..6c835b9b5 100644
--- a/src/slic3r/Utils/PrintHost.hpp
+++ b/src/slic3r/Utils/PrintHost.hpp
@@ -7,6 +7,7 @@
 #include <boost/filesystem/path.hpp>
 
 #include <wx/string.h>
+#include <wx/arrstr.h>
 
 #include "Http.hpp"