diff --git a/src/tests/end2end/IndexFormatTests.cpp b/src/tests/end2end/IndexFormatTests.cpp
index 07b26f1c45..4d5a651dda 100644
--- a/src/tests/end2end/IndexFormatTests.cpp
+++ b/src/tests/end2end/IndexFormatTests.cpp
@@ -32,21 +32,18 @@ class IndexFormatTest : public DawnTest {
 
     wgpu::RenderPipeline MakeTestPipeline(wgpu::IndexFormat format,
         wgpu::PrimitiveTopology primitiveTopology = wgpu::PrimitiveTopology::TriangleStrip) {
-        wgpu::ShaderModule vsModule =
-            utils::CreateShaderModule(device, utils::SingleShaderStage::Vertex, R"(
-                #version 450
-                layout(location = 0) in vec4 pos;
-                void main() {
-                    gl_Position = pos;
-                })");
+        wgpu::ShaderModule vsModule = utils::CreateShaderModuleFromWGSL(device, R"(
+            [[location(0)]] var<in> pos : vec4<f32>;
+            [[builtin(position)]] var<out> Position : vec4<f32>;
+            [[stage(vertex)]] fn main() -> void {
+                Position = pos;
+            })");
 
-        wgpu::ShaderModule fsModule =
-            utils::CreateShaderModule(device, utils::SingleShaderStage::Fragment, R"(
-                #version 450
-                layout(location = 0) out vec4 fragColor;
-                void main() {
-                    fragColor = vec4(0.0, 1.0, 0.0, 1.0);
-                })");
+        wgpu::ShaderModule fsModule = utils::CreateShaderModuleFromWGSL(device, R"(
+            [[location(0)]] var<out> fragColor : vec4<f32>;
+            [[stage(fragment)]] fn main() -> void {
+                fragColor = vec4<f32>(0.0, 1.0, 0.0, 1.0);
+            })");
 
         utils::ComboRenderPipelineDescriptor descriptor(device);
         descriptor.vertexStage.module = vsModule;