diff --git a/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/upgrade.lua b/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/upgrade.lua
index 29aecb95..2365f02c 100644
--- a/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/upgrade.lua
+++ b/package/gluon-luci-admin/files/usr/lib/lua/luci/controller/admin/upgrade.lua
@@ -101,9 +101,7 @@ end
 function image_supported(tmpfile)
 	-- XXX: yay...
 	return ( 0 == os.execute(
-		". /lib/functions.sh; " ..
-		"include /lib/upgrade; " ..
-		"platform_check_image %q >/dev/null"
+		"/sbin/sysupgrade -T %q >/dev/null"
 			% tmpfile
 	) )
 end