diff --git a/lucene/replicator/src/test/org/apache/lucene/replicator/nrt/TestNRTReplication.java b/lucene/replicator/src/test/org/apache/lucene/replicator/nrt/TestNRTReplication.java
index d3632f2ce6a..47a1f3a980c 100644
--- a/lucene/replicator/src/test/org/apache/lucene/replicator/nrt/TestNRTReplication.java
+++ b/lucene/replicator/src/test/org/apache/lucene/replicator/nrt/TestNRTReplication.java
@@ -740,6 +740,7 @@ public class TestNRTReplication extends LuceneTestCase {
     }
   }
 
+  @Nightly
   public void testCrashReplica() throws Exception {
 
     Path path1 = createTempDir("1");