diff --git a/src/Mod/TechDraw/App/PreCompiled.h b/src/Mod/TechDraw/App/PreCompiled.h
index 0dcea48ca5..53c0711b75 100644
--- a/src/Mod/TechDraw/App/PreCompiled.h
+++ b/src/Mod/TechDraw/App/PreCompiled.h
@@ -53,6 +53,9 @@
 #include <boost/uuid/uuid_io.hpp>
 
 // Qt
+#include <QApplication>
+#include <QCollator>
+#include <QDateTime>
 #include <QDomDocument>
 #include <QFile>
 #include <QLocale>