diff --git a/server/src/test/java/org/elasticsearch/index/translog/TranslogTests.java b/server/src/test/java/org/elasticsearch/index/translog/TranslogTests.java
index 554f64ee1c1d..cda91215b206 100644
--- a/server/src/test/java/org/elasticsearch/index/translog/TranslogTests.java
+++ b/server/src/test/java/org/elasticsearch/index/translog/TranslogTests.java
@@ -507,6 +507,7 @@ public void testStats() throws IOException {
 
         markCurrentGenAsCommitted(translog);
         {
+            lastModifiedAge = System.currentTimeMillis() - translog.getCurrent().getLastModifiedTime();
             final TranslogStats stats = stats();
             assertThat(stats.estimatedNumberOfOperations(), equalTo(4));
             assertThat(stats.getTranslogSizeInBytes(), equalTo(expectedSizeInBytes));