diff --git a/tests/src/rules/no-unused-modules.js b/tests/src/rules/no-unused-modules.js
index 936123ab71..9b72c791c0 100644
--- a/tests/src/rules/no-unused-modules.js
+++ b/tests/src/rules/no-unused-modules.js
@@ -1374,7 +1374,7 @@ describe('parser ignores prefixes like BOM and hashbang', () => {
   });
 });
 
-describe('supports flat eslint', { skip: !FlatRuleTester }, () => {
+(FlatRuleTester ? describe : describe.skip)('supports flat eslint', () => {
   const flatRuleTester = new FlatRuleTester();
   flatRuleTester.run('no-unused-modules', rule, {
     valid: [{