diff --git a/src/slic3r/GUI/WebPanel.hpp b/src/slic3r/GUI/WebPanel.hpp
index 5f6c877336..785f409e91 100644
--- a/src/slic3r/GUI/WebPanel.hpp
+++ b/src/slic3r/GUI/WebPanel.hpp
@@ -4,6 +4,7 @@
 
 #include <wx/event.h>
 #include <wx/panel.h>
+#include <wx/string.h>
 #include <wx/webview.h>
 
 #include <optional>
diff --git a/src/slic3r/GUI/Widgets/WebView.cpp b/src/slic3r/GUI/Widgets/WebView.cpp
index 0e6bd2848d..5a0d20843c 100644
--- a/src/slic3r/GUI/Widgets/WebView.cpp
+++ b/src/slic3r/GUI/Widgets/WebView.cpp
@@ -14,6 +14,7 @@
 #include <exception>
 #include <thread>
 
+#include <wx/chartype.h>
 #include <wx/setup.h>
 #include <wx/webview.h>
 #include <wx/string.h>