diff --git a/tests/data/test819 b/tests/data/test819
index 5e87f3f8e..f35a50ad0 100644
--- a/tests/data/test819
+++ b/tests/data/test819
@@ -13,7 +13,7 @@ RFC4616
 <servercmd>
 AUTH PLAIN
 REPLY AUTHENTICATE +
-REPLY dGVzdAB0ZXN0ADEyMzQ= A002 OK AUTHENTICATE completed
+REPLY dXNlcgB1c2VyAHNlY3JldA== A002 OK AUTHENTICATE completed
 </servercmd>
 <data>
 From: me@somewhere
@@ -46,7 +46,7 @@ IMAP plain authentication
 <protocol>
 A001 CAPABILITY
 A002 AUTHENTICATE PLAIN
-dGVzdAB0ZXN0ADEyMzQ=
+dXNlcgB1c2VyAHNlY3JldA==
 A003 SELECT 819
 A004 FETCH 1 BODY[]
 A005 LOGOUT