diff --git a/LinuxTGZ/CopasiUI b/LinuxTGZ/CopasiUI
index 03d0ba1283..542e43318b 100755
--- a/LinuxTGZ/CopasiUI
+++ b/LinuxTGZ/CopasiUI
@@ -22,7 +22,7 @@ if [ _${QT_MISSING} = _true ]; then
   QT_OPENGL=software
   QT_QPA_PLATFORM=xcb
   QT_XKB_CONFIG_ROOT=${QT_XKB_CONFIG_ROOT}:/usr/share/X11/xkb
-  export LD_LIBRARY_PATH QT_QPA_PLATFORM_PLUGIN_PATH LIBGL_ALWAYS_SOFTWARE QT_OPENGL QT_QPA_PLATFORM
+  export LD_LIBRARY_PATH QT_QPA_PLATFORM_PLUGIN_PATH LIBGL_ALWAYS_SOFTWARE QT_OPENGL QT_QPA_PLATFORM QT_XKB_CONFIG_ROOT
 fi
 
 "${CopasiUI}" "$@"