diff --git a/mac/gramps.launcher b/mac/gramps.launcher
index 47bca2695..55010a553 100755
--- a/mac/gramps.launcher
+++ b/mac/gramps.launcher
@@ -24,7 +24,9 @@ export PANGO_RC_FILE="$bundle_etc/pango/pangorc"
 export PANGO_SYSCONFDIR="$bundle_etc"
 export PANGO_LIBDIR="$bundle_lib"
 export GDK_PIXBUF_MODULE_FILE="$bundle_etc/gtk-2.0/gdk-pixbuf.loaders"
-export GTK_IM_MODULE_FILE="$bundle_etc/gtk-2.0/gtk.immodules"
+if [ `uname -r | cut -d . -f 1` -ge 10 ]; then
+    export GTK_IM_MODULE_FILE="$bundle_etc/gtk-2.0/gtk.immodules"
+fi
 export GTK2_RC_FILES="$bundle_etc/gtk-2.0/gtkrc"
 export GVBINDIR="$bundle_lib/graphviz"