diff --git a/src/frontends/qt4/Dialog.cpp b/src/frontends/qt4/Dialog.cpp
index d60c3e7c73..88cfcec95f 100644
--- a/src/frontends/qt4/Dialog.cpp
+++ b/src/frontends/qt4/Dialog.cpp
@@ -21,12 +21,11 @@
 #include "LyXFunc.h"
 
 #include "support/debug.h"
+#include "support/lassert.h"
 
 #include <QSettings>
 #include <QString>
 
-#include "support/lassert.h"
-
 #include <string>
 
 using namespace std;