diff --git a/kmplot/kmplot/qconstanteditor.ui b/kmplot/kmplot/qconstanteditor.ui
index 366f7d8d..a367d809 100644
--- a/kmplot/kmplot/qconstanteditor.ui
+++ b/kmplot/kmplot/qconstanteditor.ui
@@ -183,6 +183,9 @@
 <includes>
     <include location="local" impldecl="in implementation">qconstanteditor.ui.h</include>
 </includes>
+<forwards>
+    <forward>class TQListViewItem;</forward>
+</forwards>
 <Q_SLOTS>
     <slot>cmdCancel_clicked()</slot>
     <slot>cmdNew_clicked()</slot>