diff --git a/src/GUI/new_gui.cxx b/src/GUI/new_gui.cxx
index 21c6dca0b..6e8dc5196 100644
--- a/src/GUI/new_gui.cxx
+++ b/src/GUI/new_gui.cxx
@@ -34,7 +34,7 @@ NewGUI::init ()
 {
     char path1[1024];
     char path2[1024];
-    ulMakePath(path1, getenv("FG_ROOT"), "gui");
+    ulMakePath(path1, globals->get_fg_root().c_str(), "gui");
     ulMakePath(path2, path1, "dialogs");
     readDir(path2);
 #if !defined(FG_OLD_MENUBAR)