diff --git a/src/libs/vlayout/dialogs/dialoglayoutscale.cpp b/src/libs/vlayout/dialogs/dialoglayoutscale.cpp
index 04b705537..a5d566c0d 100644
--- a/src/libs/vlayout/dialogs/dialoglayoutscale.cpp
+++ b/src/libs/vlayout/dialogs/dialoglayoutscale.cpp
@@ -32,6 +32,7 @@
 #include "../vmisc/vsettings.h"
 
 #include <QPushButton>
+#include <QShowEvent>
 
 //---------------------------------------------------------------------------------------------------------------------
 DialogLayoutScale::DialogLayoutScale(bool printTiled, QWidget *parent)