diff --git a/src/gui/formabout.cpp b/src/gui/formabout.cpp
index 826eff536..a0fdc1344 100755
--- a/src/gui/formabout.cpp
+++ b/src/gui/formabout.cpp
@@ -19,6 +19,7 @@
 
 #include "miscellaneous/iconfactory.h"
 #include "miscellaneous/textfactory.h"
+#include "miscellaneous/settingsproperties.h"
 
 #if !defined(Q_OS_WIN)
 #include "gui/messagebox.h"