diff --git a/centos/resources/sngrep.sh b/centos/resources/sngrep.sh
index 90c2930..ceb8270 100755
--- a/centos/resources/sngrep.sh
+++ b/centos/resources/sngrep.sh
@@ -5,7 +5,7 @@ cd "$(dirname "$0")"
 
 IRONTEC="[irontec]
 name=Irontec RPMs repository
-baseurl=http://packages.irontec.com/centos/$releasever/$basearch/"
+baseurl=http://packages.irontec.com/centos/\$releasever/\$basearch/"
 echo "${IRONTEC}" > /etc/yum.repos.d/irontec.repo
 rpm --import http://packages.irontec.com/public.key
 yum -y install sngrep