diff --git a/system/t06_publish/repo.py b/system/t06_publish/repo.py
index 2350bad1..e0fdc6ac 100644
--- a/system/t06_publish/repo.py
+++ b/system/t06_publish/repo.py
@@ -596,6 +596,7 @@ class PublishRepo26Test(BaseTest):
     ]
     runCmd = "aptly publish repo -keyring=${files}/aptly_passphrase.pub -secret-keyring=${files}/aptly_passphrase.sec -passphrase=verysecret -distribution=maverick local-repo"
     gold_processor = BaseTest.expand_environ
+    outputMatchPrepare = lambda _, s: s.replace("gpg: gpg-agent is not available in this session\n", "")
 
     def check(self):
         super(PublishRepo26Test, self).check()