diff --git a/qtinterface/tqt.h.cmake b/qtinterface/tqt.h.cmake
index 92a0ee9..124c60f 100644
--- a/qtinterface/tqt.h.cmake
+++ b/qtinterface/tqt.h.cmake
@@ -299,6 +299,7 @@ Boston, MA 02110-1301, USA.
 #define TQSharedCleanupHandler QSharedCleanupHandler
 #define TQSharedDoubleBuffer QSharedDoubleBuffer
 #define TQShared QShared
+#define TQCollection QCollection
 #define TQColor QColor
 #define TQColorDialog QColorDialog
 #define TQStringPairList QStringPairList