diff --git a/src/main/javascript/fireworks/fireworks.js b/src/main/javascript/fireworks/fireworks.js
index f72a076..a26bd1c 100644
--- a/src/main/javascript/fireworks/fireworks.js
+++ b/src/main/javascript/fireworks/fireworks.js
@@ -64,9 +64,9 @@ plugin("fireworks", {
         var c1 = getColor(r1i);
         var c2 = getColor(r2i);
         var effectBuilder = FireworkEffect.builder()
-            .flicker(Math.round(Math.random()==0)
+            .flicker(Math.round(Math.random())==0)
             .withColor(c1)
-            .withFade(c2).trail(Math.round(Math.random()==0);
+            .withFade(c2).trail(Math.round(Math.random())==0);
         effectBuilder['with'](type);
         var effect = effectBuilder.build();
         fwm.addEffect(effect);