diff --git a/src/app/options.h b/src/app/options.h
index 5d1c9e37b..290b59aa2 100644
--- a/src/app/options.h
+++ b/src/app/options.h
@@ -29,7 +29,6 @@
 #ifndef OPTIONS_H
 #define OPTIONS_H
 
-#include <QtGlobal>
 #include "../libs/ifc/ifcdef.h"
 
 #ifdef Q_OS_WIN32
@@ -40,7 +39,6 @@
 #   endif /*Q_CC_MSVC*/
 #   include <windows.h>
 
-extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
 #endif /*Q_OS_WIN32*/
 
 class QString;
diff --git a/src/libs/ifc/ifcdef.h b/src/libs/ifc/ifcdef.h
index 79d0c2179..f80e9bbf5 100644
--- a/src/libs/ifc/ifcdef.h
+++ b/src/libs/ifc/ifcdef.h
@@ -30,6 +30,11 @@
 #define IFCDEF_H
 
 #include <csignal>
+#include <QtGlobal>
+
+#ifdef Q_OS_WIN32
+    extern Q_CORE_EXPORT int qt_ntfs_permission_lookup;
+#endif /*Q_OS_WIN32*/
 
 enum class Unit : char { Mm, Cm, Inch };
 enum class MeasurementsType : char { Standard, Individual };