diff --git a/distrib/scripts/manifests/x11.rsp b/distrib/scripts/manifests/x11.rsp
index 15beff1d73..e21df99f73 100644
--- a/distrib/scripts/manifests/x11.rsp
+++ b/distrib/scripts/manifests/x11.rsp
@@ -10,6 +10,7 @@ src/x11/*.inc
 src/x11/*.xbm
 
 include/wx/x11/*.h
+include/wx/univ/*.h
 include/wx/gtk/private/string.h
 include/wx/x11/nanox/X11/*.h