diff --git a/examples/CppHelloTriangle.cpp b/examples/CppHelloTriangle.cpp
index ad57cfe..7af1b23 100644
--- a/examples/CppHelloTriangle.cpp
+++ b/examples/CppHelloTriangle.cpp
@@ -105,7 +105,7 @@
         [[group(0), binding(0)]] var mySampler: sampler;
         [[group(0), binding(1)]] var myTexture : texture_2d<f32>;
 
-        [[stage(fragment)]] fn main([[builtin(frag_coord)]] FragCoord : vec4<f32>)
+        [[stage(fragment)]] fn main([[builtin(position)]] FragCoord : vec4<f32>)
                                  -> [[location(0)]] vec4<f32> {
             return textureSample(myTexture, mySampler, FragCoord.xy / vec2<f32>(640.0, 480.0));
         })");