diff --git a/lib/domains/abused.txt b/lib/domains/abused.txt
index 3a09c662a4..6b19740401 100644
--- a/lib/domains/abused.txt
+++ b/lib/domains/abused.txt
@@ -1504,4 +1504,5 @@ office.ui.ac.id
 studenti.unige.it
 udd.cl
 ub.ac.id
-asu.edu.ph
\ No newline at end of file
+asu.edu.ph
+osan.ac.kr
\ No newline at end of file
diff --git a/lib/domains/kr/ac/osan/portal.txt b/lib/domains/kr/ac/osan/portal.txt
deleted file mode 100644
index e6f6f8fe59..0000000000
--- a/lib/domains/kr/ac/osan/portal.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-오산대학교
-OSAN UNIVERSITY
\ No newline at end of file