diff --git a/src/webgpu/web_platform/canvas/configure.spec.ts b/src/webgpu/web_platform/canvas/configure.spec.ts
index 472bc008ef3f..3e9905dd5bd8 100644
--- a/src/webgpu/web_platform/canvas/configure.spec.ts
+++ b/src/webgpu/web_platform/canvas/configure.spec.ts
@@ -179,7 +179,7 @@ g.test('format')
         format,
       });
       const configuration = ctx.getConfiguration();
-      t.expect(configuration.format === format);
+      t.expect(configuration!.format === format);
     } else {
       t.shouldThrow('TypeError', () => {
         ctx.configure({
@@ -223,7 +223,7 @@ g.test('usage')
     });
 
     const configuration = ctx.getConfiguration();
-    t.expect(configuration.usage === usage);
+    t.expect(configuration!.usage === usage);
 
     const currentTexture = ctx.getCurrentTexture();
     t.expect(currentTexture instanceof GPUTexture);
@@ -336,7 +336,7 @@ g.test('alpha_mode')
     });
 
     const configuration = ctx.getConfiguration();
-    t.expect(configuration.alphaMode === alphaMode);
+    t.expect(configuration!.alphaMode === alphaMode);
 
     const currentTexture = ctx.getCurrentTexture();
     t.expect(currentTexture instanceof GPUTexture);