diff --git a/mac/gramps.launcher b/mac/gramps.launcher
index 5311c6f4a..6739e7573 100755
--- a/mac/gramps.launcher
+++ b/mac/gramps.launcher
@@ -25,7 +25,7 @@ export PANGO_SYSCONFDIR="$bundle_etc"
 export PANGO_LIBDIR="$bundle_lib"
 export GDK_PIXBUF_MODULE_FILE="$bundle_etc/gtk-3.0/gdk-pixbuf.loaders"
 export GTK_IM_MODULE_FILE="$bundle_etc/gtk-3.0/gtk.immodules"
-export GI_TYPELIB_PATH="bundle_lib/girepository-1.0"
+export GI_TYPELIB_PATH="$bundle_lib/girepository-1.0"
 export GVBINDIR="$bundle_lib/graphviz"