diff --git a/js/web/lib/wasm/jsep/webgpu/ops/common.ts b/js/web/lib/wasm/jsep/webgpu/ops/common.ts
index 375a18d4b832e..5fffa2f266603 100644
--- a/js/web/lib/wasm/jsep/webgpu/ops/common.ts
+++ b/js/web/lib/wasm/jsep/webgpu/ops/common.ts
@@ -213,7 +213,7 @@ export interface IndicesHelper {
   readonly strides: string;
 }
 
-export const getWgslMappedType = (type: number, components: 1|2|3|4): string|[string, string] => {
+const getWgslMappedType = (type: number, components: 1|2|3|4): string|[string, string] => {
   if (components === 3) {
     throw new Error('vec3 has same alignment as vec4, use vec4 instead');
   }