diff --git a/examples/gpu/source/main.c b/examples/gpu/source/main.c
index 17a4bee..3c177ce 100644
--- a/examples/gpu/source/main.c
+++ b/examples/gpu/source/main.c
@@ -167,8 +167,8 @@ void renderFrame()
 
 	//setup lighting (this is specific to our shader)
 		vect3Df_s lightDir=vnormf(vect3Df(cos(lightAngle), -1.0f, sin(lightAngle)));
-		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightDirection", 0), (u32*)(float[]){0.0f, -lightDir.z, -lightDir.y, -lightDir.x}, 4);
-		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightAmbient", 0), (u32*)(float[]){0.7f, 0.4f, 0.4f, 0.4f}, 4);
+		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightDirection", 0), (u32*)(float[]){0.0f, -lightDir.z, -lightDir.y, -lightDir.x}, 1);
+		GPU_SetUniform(SHDR_GetUniformRegister(shader, "lightAmbient", 0), (u32*)(float[]){0.7f, 0.4f, 0.4f, 0.4f}, 1);
 
 	//initialize projection matrix to standard perspective stuff
 	gsMatrixMode(GS_PROJECTION);