diff --git a/install-koji-farm.sh b/install-koji-farm.sh
index 65938ae..4c8045d 100644
--- a/install-koji-farm.sh
+++ b/install-koji-farm.sh
@@ -142,8 +142,8 @@ else
         exit 1
     fi    
     # update hub config files to point at web server
-    sed -i s/KojiWebURL*/KojiWebURL = http://$KOJI_WEB_FQDN\/koji/ /etc/koji-hub/hub.conf
-    sed -i s/weburl*/weburl = http://$KOJI_WEB_FQDN\/koji/ /etc/koji.conf
+    sed 's,KojiWebURL.*,KojiWebURL = http://$KOJI_WEB_FQDN/koji,g' /etc/koji-hub/hub.conf
+    sed 's,weburl.*,weburl = http://$KOJI_WEB_FQDN/koji,g' /etc/koji.conf
     # generate a hub ssh key if there isn't one already (for scp & ssh to web server)
     if [ ! -f /root/.ssh/id-rsa ] ; then
         # create a ssh key on build server