Index: src/libtiled/orthogonalrenderer.cpp
--- src/libtiled/orthogonalrenderer.cpp.orig
+++ src/libtiled/orthogonalrenderer.cpp
@@ -35,6 +35,7 @@
 #include "tileset.h"
 
 #include <QtCore/qmath.h>
+#include <QPainterPath>
 
 using namespace Tiled;
 
