diff --git a/processing/src/test/java/io/druid/segment/IndexBuilder.java b/processing/src/test/java/io/druid/segment/IndexBuilder.java
index 5626f30b2b1..35d2611ba3e 100644
--- a/processing/src/test/java/io/druid/segment/IndexBuilder.java
+++ b/processing/src/test/java/io/druid/segment/IndexBuilder.java
@@ -118,8 +118,7 @@ public class IndexBuilder
   {
     Preconditions.checkNotNull(indexMerger, "indexMerger");
     Preconditions.checkNotNull(tmpDir, "tmpDir");
-    final IncrementalIndex incrementalIndex = buildIncrementalIndex();
-    try {
+    try (final IncrementalIndex incrementalIndex = buildIncrementalIndex()) {
       return TestHelper.getTestIndexIO().loadIndex(
           indexMerger.persist(
               incrementalIndex,