diff --git a/installer/resources/countries.txt b/installer/resources/countries.txt
index 7b3c96fc9..11c360aaa 100644
--- a/installer/resources/countries.txt
+++ b/installer/resources/countries.txt
@@ -177,7 +177,7 @@ PY,PARAGUAY
 QA,QATAR
 RE,REUNION
 RO,ROMANIA
-RS,
+RS,SERBIA
 RU,RUSSIAN FEDERATION
 RW,RWANDA
 SA,SAUDI ARABIA