diff --git a/src/plugins/simulator/fsx_config/simconnectsettingscomponent.cpp b/src/plugins/simulator/fsx_config/simconnectsettingscomponent.cpp
index d995a00fd..205c4df38 100644
--- a/src/plugins/simulator/fsx_config/simconnectsettingscomponent.cpp
+++ b/src/plugins/simulator/fsx_config/simconnectsettingscomponent.cpp
@@ -9,6 +9,7 @@
 #include <QFileInfo>
 #include <QDesktopServices>
 #include <QMessageBox>
+#include <QStringBuilder>
 
 using namespace BlackMisc;
 using namespace BlackMisc::Simulation::Fsx;