diff --git a/src/webgpu/listing_meta.json b/src/webgpu/listing_meta.json
index 4497993899e1..1f8f74330495 100644
--- a/src/webgpu/listing_meta.json
+++ b/src/webgpu/listing_meta.json
@@ -2001,6 +2001,7 @@
   "webgpu:shader,validation,shader_io,size:size:*": { "subcaseMS": 1.218 },
   "webgpu:shader,validation,shader_io,size:size_fp16:*": { "subcaseMS": 1.500 },
   "webgpu:shader,validation,shader_io,size:size_non_struct:*": { "subcaseMS": 0.929 },
+  "webgpu:shader,validation,shader_io,size:size_creation_fixed_footprint:*": { "subcaseMS": 1.000 },
   "webgpu:shader,validation,shader_io,workgroup_size:workgroup_size:*": { "subcaseMS": 1.227 },
   "webgpu:shader,validation,shader_io,workgroup_size:workgroup_size_const:*": { "subcaseMS": 3.400 },
   "webgpu:shader,validation,shader_io,workgroup_size:workgroup_size_fp16:*": { "subcaseMS": 0.700 },
diff --git a/src/webgpu/shader/validation/shader_io/size.spec.ts b/src/webgpu/shader/validation/shader_io/size.spec.ts
index f81dde4a1d63..564c3f2b7ceb 100644
--- a/src/webgpu/shader/validation/shader_io/size.spec.ts
+++ b/src/webgpu/shader/validation/shader_io/size.spec.ts
@@ -103,7 +103,7 @@ const kSizeTests = {
 };
 
 g.test('size')
-  .desc(`Test validation of ize`)
+  .desc(`Test validation of size`)
   .params(u => u.combine('attr', keysOf(kSizeTests)))
   .fn(t => {
     const code = `
@@ -210,3 +210,21 @@ g.test('size_non_struct')
 
     t.expectCompileResult(data.pass, code);
   });
+
+g.test('size_creation_fixed_footprint')
+  .desc(`Test that @size is only valid on types that have creation-fixed footprint.`)
+  .params(u => u.combine('array_size', [', 4', '']))
+  .fn(t => {
+    const code = `
+struct S {
+  @size(64) a: array<f32${t.params.array_size}>,
+};
+@group(0) @binding(0)
+var<storage> a: S;
+
+@workgroup_size(1)
+@compute fn main() {
+  _ = a.a[0];
+}`;
+    t.expectCompileResult(t.params.array_size !== '', code);
+  });