diff --git a/test/src/test/java/hudson/util/AtomicFileWriterPerfTest.java b/test/src/test/java/hudson/util/AtomicFileWriterPerfTest.java
index 94d5e6c687..31942ed318 100644
--- a/test/src/test/java/hudson/util/AtomicFileWriterPerfTest.java
+++ b/test/src/test/java/hudson/util/AtomicFileWriterPerfTest.java
@@ -24,7 +24,7 @@ public class AtomicFileWriterPerfTest {
      * <strong>really</strong> bad performance regressions.
      */
     @Issue("JENKINS-34855")
-    @Test(timeout = 30 * 1000L)
+    @Test(timeout = 50 * 1000L)
     public void poorManPerformanceTestBed() throws Exception {
         int count = 1000;
         while (count-- > 0) {