diff --git a/qtinterface/tqt.h.cmake b/qtinterface/tqt.h.cmake
index 7baf0e4..537e21a 100644
--- a/qtinterface/tqt.h.cmake
+++ b/qtinterface/tqt.h.cmake
@@ -441,6 +441,7 @@ Boston, MA 02110-1301, USA.
 #define TQGLayoutIterator QGLayoutIterator
 #define TQLayoutIterator QLayoutIterator
 #define TQLayoutItem QLayoutItem
+#define TQLayoutStruct QLayoutStruct
 #define TQLayoutWidget QLayoutWidget
 #define TQSpacerItem QSpacerItem
 #define TQWidgetItem QWidgetItem