--- qmake\generators\win32\msvc_objectmodel.cpp	2010-02-11 15:55:16.000000000 +0000
+++ qmake\generators\win32\msvc_objectmodel.cpp	2012-10-09 11:32:45.514753200 +0100
@@ -2435,6 +2435,13 @@
     tempProj.outputFilter(xml, "TranslationFiles");
     tempProj.outputFilter(xml, "FormFiles");
     tempProj.outputFilter(xml, "ResourceFiles");
+
+    // Add ExtraCompilersFiles
+    for (int j = 0; j < tool.ExtraCompilersFiles.count(); ++j) {
+        const QString &compilerName = tool.ExtraCompilersFiles.at(j).Name;
+        if (!tempProj.ExtraCompilers.contains(compilerName))
+            tempProj.ExtraCompilers += compilerName;
+    }
     for (int x = 0; x < tempProj.ExtraCompilers.count(); ++x) {
         tempProj.outputFilter(xml, tempProj.ExtraCompilers.at(x));
     }