diff --git a/examples/Animometer.cpp b/examples/Animometer.cpp
index 2af862a4e5..0ea4457427 100644
--- a/examples/Animometer.cpp
+++ b/examples/Animometer.cpp
@@ -57,7 +57,7 @@ void init() {
             float scalarOffset;
         } c;
 
-        out vec4 v_color;
+        layout(location = 0) out vec4 v_color;
 
         const vec4 positions[3] = vec4[3](
             vec4( 0.0f,  0.1f, 0.0f, 1.0f),
@@ -96,7 +96,7 @@ void init() {
     nxt::ShaderModule fsModule = CreateShaderModule(device, nxt::ShaderStage::Fragment, R"(
         #version 450
         out vec4 fragColor;
-        in vec4 v_color;
+        layout(location = 0) in vec4 v_color;
         void main() {
             fragColor = v_color;
         })"
diff --git a/src/backend/common/ShaderModule.cpp b/src/backend/common/ShaderModule.cpp
index 0769712b81..50b46dbcba 100644
--- a/src/backend/common/ShaderModule.cpp
+++ b/src/backend/common/ShaderModule.cpp
@@ -29,6 +29,7 @@ namespace backend {
 
     void ShaderModuleBase::ExtractSpirvInfo(const spirv_cross::Compiler& compiler) {
         // TODO(cwallez@chromium.org): make errors here builder-level
+        // currently errors here do not prevent the shadermodule from being used
         const auto& resources = compiler.get_shader_resources();
 
         switch (compiler.get_execution_model()) {