diff --git a/time/79-suncalc.js b/time/79-suncalc.js
index 2c5e8b54..2b265391 100644
--- a/time/79-suncalc.js
+++ b/time/79-suncalc.js
@@ -38,7 +38,7 @@ function SunNode(n) {
         var mins2 = times[node.end].getUTCMinutes();
         var e1 = (hour*60+mins) - (hour1*60+mins1);
         var e2 = (hour*60+mins) - (hour2*60+mins2);
-        var moon = parseInt(SunCalc.getMoonFraction(now)*100)/100;
+        var moon = SunCalc.getMoonIllumination(now).fraction;
         msg = { payload:0, topic:"sun", moon:moon };
         if ((e1 > 0) & (e2 < 0)) { msg.payload = 1; }
         if (oldval == null) { oldval = msg.payload; }