diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 0274d7ba80..6847b47d0f 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -41,6 +41,7 @@
 #include <boost/filesystem/exception.hpp>
 #include <boost/locale/encoding_utf.hpp>
 #include <boost/log/detail/native_typeof.hpp>
+#include <cstdint>
 #include <iomanip>
 #include <iostream>
 #include <cassert>
diff --git a/src/slic3r/GUI/WebGuideDialog.cpp b/src/slic3r/GUI/WebGuideDialog.cpp
index 6ad577c60a..cadf45c22c 100644
--- a/src/slic3r/GUI/WebGuideDialog.cpp
+++ b/src/slic3r/GUI/WebGuideDialog.cpp
@@ -1,4 +1,5 @@
 #include "WebGuideDialog.hpp"
+#include "CloudProvider.hpp"
 #include "ConfigWizard.hpp"
 
 #include <algorithm>