diff --git a/src/Shader/SetupRoutine.cpp b/src/Shader/SetupRoutine.cpp
index 08cdf59..1e2e897 100644
--- a/src/Shader/SetupRoutine.cpp
+++ b/src/Shader/SetupRoutine.cpp
@@ -36,10 +36,10 @@
 	{
 		Function<Bool(Pointer<Byte>, Pointer<Byte>, Pointer<Byte>, Pointer<Byte>)> function;
 		{
-			Pointer<Byte> primitive(function.arg(0));
-			Pointer<Byte> tri(function.arg(1));
-			Pointer<Byte> polygon(function.arg(2));
-			Pointer<Byte> data(function.arg(3));
+			Pointer<Byte> primitive(function.Arg<0>());
+			Pointer<Byte> tri(function.Arg<1>());
+			Pointer<Byte> polygon(function.Arg<2>());
+			Pointer<Byte> data(function.Arg<3>());
 
 			Pointer<Byte> constants = *Pointer<Pointer<Byte> >(data + OFFSET(DrawData,constants));