diff --git a/src/webgpu/shader/execution/expression/expression.ts b/src/webgpu/shader/execution/expression/expression.ts
index 50885c0d3594..0359e6e901a1 100644
--- a/src/webgpu/shader/execution/expression/expression.ts
+++ b/src/webgpu/shader/execution/expression/expression.ts
@@ -14,6 +14,7 @@ import {
   isAbstractType,
   scalarTypeOf,
   ArrayType,
+  elementTypeOf,
 } from '../../../util/conversion.js';
 import { align } from '../../../util/math.js';
 
@@ -618,7 +619,7 @@ function basicExpressionShaderBody(
     // Constant eval
     //////////////////////////////////////////////////////////////////////////
     let body = '';
-    if (parameterTypes.some(isAbstractType)) {
+    if (parameterTypes.some(ty => isAbstractType(elementTypeOf(ty)))) {
       // Directly assign the expression to the output, to avoid an
       // intermediate store, which will concretize the value early
       body = cases