diff --git a/js/web/lib/index.ts b/js/web/lib/index.ts
index 41024de108..e3851755a3 100644
--- a/js/web/lib/index.ts
+++ b/js/web/lib/index.ts
@@ -16,7 +16,7 @@ if (!BUILD_DEFS.DISABLE_WEBGL) {
 
 if (!BUILD_DEFS.DISABLE_WASM) {
   const wasmBackend = require('./backend-wasm').wasmBackend;
-  if (!BUILD_DEFS.DISABLE_WEBGPU) {
+  if (!BUILD_DEFS.DISABLE_WEBGPU && typeof navigator !== 'undefined' && navigator.gpu) {
     registerBackend('webgpu', wasmBackend, 5);
   }
   registerBackend('cpu', wasmBackend, 10);