diff --git a/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterExceptions.java b/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterExceptions.java
index 2594f2f6d9f..aa3a162a2a9 100644
--- a/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterExceptions.java
+++ b/lucene/core/src/test/org/apache/lucene/index/TestIndexWriterExceptions.java
@@ -2056,6 +2056,8 @@ public class TestIndexWriterExceptions extends LuceneTestCase {
           return true;
         }
       }) {
+        writer.rollback();
+        fail();
       }
     } catch (RuntimeException e) {
       assertEquals("boom", e.getMessage());