diff --git a/CREDITS b/CREDITS
index b07a0b3e2..1810a86b9 100644
--- a/CREDITS
+++ b/CREDITS
@@ -113,6 +113,8 @@ E: jacob@appelbaum.com
 W: http://www.appelbaum.net/
 P: 12E4 04FF D3C9 31F9 3405  2D06 B884 1A91 9D0F ACE4
 D: Debian packaging including init scripts
+D: Note that contributions from Jacob Appelbaum (ioerror) are no longer welcome
+D: due to behavior unacceptable to community standards in Tor and other projects
 
 N: Jeremy Visser
 D: Ubuntu packaging, usability testing