diff --git a/src/frontend/qt_sdl/AboutDialog.cpp b/src/frontend/qt_sdl/AboutDialog.cpp
index ccf39eaa..22022de9 100644
--- a/src/frontend/qt_sdl/AboutDialog.cpp
+++ b/src/frontend/qt_sdl/AboutDialog.cpp
@@ -19,6 +19,7 @@
 #include "AboutDialog.h"
 
 #include <QDesktopServices>
+#include <QUrl>
 
 #include "ui_AboutDialog.h"
 
diff --git a/src/frontend/qt_sdl/EmuThread.h b/src/frontend/qt_sdl/EmuThread.h
index 7a07c42c..c53740c8 100644
--- a/src/frontend/qt_sdl/EmuThread.h
+++ b/src/frontend/qt_sdl/EmuThread.h
@@ -23,6 +23,7 @@
 #include <QMutex>
 #include <QSemaphore>
 #include <QQueue>
+#include <QVariant>
 
 #include <atomic>
 #include <variant>