diff --git a/tests/lib/rules/jsx-indent-props.js b/tests/lib/rules/jsx-indent-props.js
index 5e479bc7ee..cc037fa39b 100644
--- a/tests/lib/rules/jsx-indent-props.js
+++ b/tests/lib/rules/jsx-indent-props.js
@@ -244,6 +244,7 @@ ruleTester.run('jsx-indent-props', rule, {
       '      some={{aaa}}',
       '    />',
       '  : null}'
+    ].join('\n'),
     options: [2],
     errors: [
       {message: 'Expected indentation of 6 space characters but found 4.'},