diff --git a/core/src/test/java/hudson/util/io/TarArchiverTest.java b/core/src/test/java/hudson/util/io/TarArchiverTest.java
index f14df9d79791058f0c5bcddc50580d158ba50228..65b644bd0010dca97ab5527596d53e3a3995eaf3 100644
--- a/core/src/test/java/hudson/util/io/TarArchiverTest.java
+++ b/core/src/test/java/hudson/util/io/TarArchiverTest.java
@@ -70,7 +70,7 @@ public class TarArchiverTest extends TestCase {
             e.mkdirs();
 
             // extract via the tar command
-            assertEquals(0, new LocalLauncher(new StreamTaskListener(System.out)).launch().cmds("tar", "xvf", tar.getAbsolutePath()).pwd(e).join());
+            assertEquals(0, new LocalLauncher(new StreamTaskListener(System.out)).launch().cmds("tar", "xvpf", tar.getAbsolutePath()).pwd(e).join());
 
             assertEquals(0100755,e.child("a.txt").mode());
             assertEquals(dirMode,e.child("subdir").mode());