diff --git a/src/frontends/qt4/GuiPainter.cpp b/src/frontends/qt4/GuiPainter.cpp
index 725320b575..2fd2a20a7e 100644
--- a/src/frontends/qt4/GuiPainter.cpp
+++ b/src/frontends/qt4/GuiPainter.cpp
@@ -29,6 +29,8 @@
 #include "support/lassert.h"
 #include "support/debug.h"
 
+#include <algorithm>
+
 #include <QPixmapCache>
 #include <QTextLayout>
 
diff --git a/src/frontends/qt4/GuiProgressView.cpp b/src/frontends/qt4/GuiProgressView.cpp
index 454148f7a8..3a8f0754d9 100644
--- a/src/frontends/qt4/GuiProgressView.cpp
+++ b/src/frontends/qt4/GuiProgressView.cpp
@@ -24,6 +24,8 @@
 #include "support/convert.h"
 #include "support/debug.h"
 
+#include <algorithm>
+
 #include <QCheckBox>
 #include <QDebug>
 #include <QSettings>