diff --git a/Effects/PointLightCollection.cs b/Effects/PointLightCollection.cs
index 708a180..53c459b 100644
--- a/Effects/PointLightCollection.cs
+++ b/Effects/PointLightCollection.cs
@@ -7,7 +7,7 @@ namespace Kav
     {
         private readonly Vector3[] positions;
         private readonly Vector3[] colors;
-        private readonly float[] intensities = new float[4];
+        private readonly float[] intensities;
 
         readonly EffectParameter lightPositionsParam;
         readonly EffectParameter lightColorsParam;
@@ -16,6 +16,7 @@ namespace Kav
         {
             this.positions = new Vector3[maxLights];
             this.colors = new Vector3[maxLights];
+            this.intensities = new float[maxLights];
             this.lightPositionsParam = lightPositionsParam;
             this.lightColorsParam = lightColorsParam;
         }