diff --git a/packages/material-ui/src/Autocomplete/Autocomplete.test.js b/packages/material-ui/src/Autocomplete/Autocomplete.test.js
index 50031e8e6b3955..f082d3b8a968ed 100644
--- a/packages/material-ui/src/Autocomplete/Autocomplete.test.js
+++ b/packages/material-ui/src/Autocomplete/Autocomplete.test.js
@@ -2124,6 +2124,7 @@ describe('<Autocomplete />', () => {
         onChange={handleChange}
         onKeyDown={(event) => {
           if (event.key === 'Enter') {
+            event.persist();
             event.defaultMuiPrevented = true;
           }
         }}