diff --git a/src/filewidgets/CMakeLists.txt b/src/filewidgets/CMakeLists.txt
--- a/src/filewidgets/CMakeLists.txt
+++ b/src/filewidgets/CMakeLists.txt
@@ -79,6 +79,7 @@
   KDirOperator
   KDirSortFilterProxyModel
   KFileCopyToMenu
+  KFileCustomDialog
   KFileFilterCombo
   KFilePlaceEditDialog
   KFilePlacesModel