diff --git a/lib/domains/blacklist.txt b/lib/domains/blacklist.txt
index a01e40841c..cce0271a83 100644
--- a/lib/domains/blacklist.txt
+++ b/lib/domains/blacklist.txt
@@ -5,3 +5,4 @@ cet.edu
 australia.edu
 alumni.nottingham.ac.uk
 alumni.cmu.edu
+int.edu.gr