diff --git a/Makefile.in b/Makefile.in
index 14f8d01c53..687fde0328 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -2786,6 +2786,7 @@ COND_TOOLKIT_QT_LOWLEVEL_HDR =  \
 	wx/qt/menuitem.h \
 	wx/qt/minifram.h \
 	wx/qt/msgdlg.h \
+	wx/qt/nonownedwnd.h \
 	wx/qt/notebook.h \
 	wx/qt/palette.h \
 	wx/qt/pen.h \
diff --git a/build/bakefiles/files.bkl b/build/bakefiles/files.bkl
index 59d4d9d6d8..1c8cacd47f 100644
--- a/build/bakefiles/files.bkl
+++ b/build/bakefiles/files.bkl
@@ -290,6 +290,7 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     wx/qt/menuitem.h
     wx/qt/minifram.h
     wx/qt/msgdlg.h
+    wx/qt/nonownedwnd.h
     wx/qt/notebook.h
     wx/qt/palette.h
     wx/qt/pen.h
diff --git a/build/files b/build/files
index bd58f84fcd..14ba19ffbb 100644
--- a/build/files
+++ b/build/files
@@ -237,6 +237,7 @@ QT_LOWLEVEL_HDR =
     wx/qt/menuitem.h
     wx/qt/minifram.h
     wx/qt/msgdlg.h
+    wx/qt/nonownedwnd.h
     wx/qt/notebook.h
     wx/qt/palette.h
     wx/qt/pen.h
@@ -323,6 +324,7 @@ QT_LOWLEVEL_SRC=
     src/qt/menuitem.cpp
     src/qt/minifram.cpp
     src/qt/msgdlg.cpp
+    src/qt/nonownedwnd.cpp
     src/qt/notebook.cpp
     src/qt/palette.cpp
     src/qt/pen.cpp