diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index 6bd69a0964..8ae1f20886 100644
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -271,7 +271,7 @@ def configure(conf):
         autowaf.check_pkg(conf, 'lilv-0', uselib_store='LILV',
                           atleast_version='0.14.0', mandatory=True)
         autowaf.check_pkg(conf, 'lilv-0', uselib_store='NEW_LILV',
-                          atleast_version='0.15.0', mandatory=True)
+                          atleast_version='0.15.0', mandatory=False)
         autowaf.check_pkg(conf, 'suil-0', uselib_store='SUIL',
                           atleast_version='0.6.0', mandatory=False)
         conf.define ('LV2_SUPPORT', 1)