diff --git a/core/PGraphics.java b/core/PGraphics.java
index 44e35bb2e..328da6192 100644
--- a/core/PGraphics.java
+++ b/core/PGraphics.java
@@ -2568,7 +2568,8 @@ public class PGraphics extends PImage implements PConstants {
 
   public void spotLight(float red, float green, float blue,
                         float x, float y, float z,
-                        float nx, float ny, float nz, float angle) {
+                        float nx, float ny, float nz, 
+                        float angle, float concentration) {
     depthError("spotLight");
   }
 
diff --git a/opengl/PGraphicsGL.java b/opengl/PGraphicsGL.java
index 37471b799..c600b1232 100644
--- a/opengl/PGraphicsGL.java
+++ b/opengl/PGraphicsGL.java
@@ -879,8 +879,9 @@ public class PGraphicsGL extends PGraphics3 {
 
   public void spotLight(float r, float g, float b,
                         float x, float y, float z,
-                        float nx, float ny, float nz, float angle) {
-    super.spotLight(r, g, b, x, y, z, nx, ny, nz, angle);
+                        float nx, float ny, float nz, 
+                        float angle, float concentration) {
+    super.spotLight(r, g, b, x, y, z, nx, ny, nz, angle, concentration);
     //int num = super.internalCreateSpotLight(lr, lg, lb, x, y, z, nx, ny, nz, angle);
     glLightNoAmbient(lightCount - 1);
     glLightPosition(lightCount - 1);