diff --git a/share/misc/bsd-family-tree b/share/misc/bsd-family-tree
index 1cc585097af3..58684f71651e 100644
--- a/share/misc/bsd-family-tree
+++ b/share/misc/bsd-family-tree
@@ -493,7 +493,7 @@ Tenth   Edition         1989-10-xx [QCU]
 2.9BSD-Seismo		1985-08-xx [SMS]
 2.10BSD			1987-04-xx [KKK]
 2.10.1BSD		1989-01-xx [SMS]
-2.11BSD			1992-02-xx [SMS]
+2.11BSD			1991-03-14 [SMS]
 2.11BSD rev #430	1999-12-13 [SMS]
 
 32V			1978-1[01]-xx [QCU] 1979-03-26 [TUHS]