diff --git a/lib/domains/blacklist.txt b/lib/domains/blacklist.txt
index 39f393d025..1457e3ee57 100644
--- a/lib/domains/blacklist.txt
+++ b/lib/domains/blacklist.txt
@@ -50,4 +50,5 @@ ccc.edu
 nfs.edu.rs
 cqu.edu.cn
 losrios.edu
-vccs.edu
\ No newline at end of file
+vccs.edu
+sierracollege.edu