diff --git a/disposable_email_blacklist.conf b/disposable_email_blacklist.conf
index 4b49f80..e18d2ba 100644
--- a/disposable_email_blacklist.conf
+++ b/disposable_email_blacklist.conf
@@ -1852,7 +1852,6 @@ ntlhelp.net
 nubescontrol.com
 nullbox.info
 nurfuerspam.de
-nus.edu.sg
 nut-cc.nut.cc
 nutcc.nut.cc
 nutpa.net
diff --git a/whitelist.conf b/whitelist.conf
index 97f4f8a..7f387cf 100644
--- a/whitelist.conf
+++ b/whitelist.conf
@@ -122,6 +122,7 @@ naver.com
 neverbox.com
 nigge.rs
 nospammail.net
+nus.edu.sg
 onet.pl
 ownmail.net
 petml.com