Index: subversion/tests/cmdline/svnadmin_tests.py
===================================================================
--- subversion/tests/cmdline/svnadmin_tests.py	(revision 25052)
+++ subversion/tests/cmdline/svnadmin_tests.py	(working copy)
@@ -258,6 +258,8 @@
 
   # Verify that the revision still lacks the svn:date property.
   svntest.actions.run_and_verify_svn(None, [], [], "propget",
+                                     '--username', svntest.main.wc_author,
+                                     '--password', svntest.main.wc_passwd,
                                      "--revprop", "-r1", "svn:date",
                                      sbox.wc_dir)