diff --git a/src/java/org/lwjgl/opengl/glu/Project.java b/src/java/org/lwjgl/opengl/glu/Project.java
index 70b5966d..5ec08d5e 100644
--- a/src/java/org/lwjgl/opengl/glu/Project.java
+++ b/src/java/org/lwjgl/opengl/glu/Project.java
@@ -60,7 +60,7 @@ public class Project extends Util {
 			out[i] =
 				in[0] * finalMatrix[0][i]
 					+ in[1] * finalMatrix[1][i]
-					+ in[2] * finalMatrix[2][1]
+					+ in[2] * finalMatrix[2][i]
 					+ in[3] * finalMatrix[3][i];
 
 		}
@@ -386,4 +386,4 @@ public class Project extends Util {
 			0);
 		GL11.glScalef(viewport[2] / deltaX, viewport[3] / deltaY, 1.0f);
 	}
-}
\ No newline at end of file
+}