diff --git a/src/as/com/threerings/presents/net/Credentials.as b/src/as/com/threerings/presents/net/Credentials.as
index 3628051ef..34c6de87f 100644
--- a/src/as/com/threerings/presents/net/Credentials.as
+++ b/src/as/com/threerings/presents/net/Credentials.as
@@ -37,7 +37,7 @@ public /* abstract */ class Credentials
         return buf.toString();
     }
 
-    internal function toStringBuf (buf :StringBuilder) :void
+    protected function toStringBuf (buf :StringBuilder) :void
     {
         buf.append("username=", _username);
     }
diff --git a/src/as/com/threerings/presents/net/UsernamePasswordCreds.as b/src/as/com/threerings/presents/net/UsernamePasswordCreds.as
index 437d0ad4b..5aa92a404 100644
--- a/src/as/com/threerings/presents/net/UsernamePasswordCreds.as
+++ b/src/as/com/threerings/presents/net/UsernamePasswordCreds.as
@@ -56,7 +56,7 @@ public class UsernamePasswordCreds extends Credentials
     }
 
     // documentation inherited
-    override internal function toStringBuf (buf :StringBuilder) :void
+    override protected function toStringBuf (buf :StringBuilder) :void
     {
         super.toStringBuf(buf);
         buf.append(", password=", _password);