diff --git a/packages/svelte/tests/runtime-browser/test.ts b/packages/svelte/tests/runtime-browser/test.ts
index 4991679cef..453a15f7f5 100644
--- a/packages/svelte/tests/runtime-browser/test.ts
+++ b/packages/svelte/tests/runtime-browser/test.ts
@@ -79,6 +79,7 @@ async function run_test(
 			__CONFIG__: path.resolve(test_dir, '_config.js'),
 			'assert.js': assert_file
 		},
+		conditions: ['browser', 'development'],
 		plugins: [
 			{
 				name: 'testing-runtime-browser',
@@ -131,6 +132,7 @@ async function run_test(
 				__MAIN_DOT_SVELTE__: path.resolve(test_dir, 'main.svelte'),
 				__CONFIG__: path.resolve(test_dir, '_config.js')
 			},
+			conditions: ['browser', 'development'],
 			plugins: [
 				{
 					name: 'testing-runtime-browser-ssr',