diff --git a/debian/alternc.config b/debian/alternc.config
index baffe565..0693198f 100644
--- a/debian/alternc.config
+++ b/debian/alternc.config
@@ -180,17 +180,20 @@ db_get alternc/alternc_location
 LOCATION="$RET"
 #checking acl and quota activation, does't work with NFS yet. should now work with lxc
 MOUNT_POINT=$(df -P ${LOCATION%/*} | tail -n 1 | awk '{print $6}')
+
 # Get the mount options for the path:$
 MOUNT_OPTS=$(awk '$2=="'$MOUNT_POINT'" { print $4 }' /proc/mounts)
-# Check to see if acl is one of the mount points:$
-echo $MOUNT_OPTS | tr , \\\n | grep -q '^acl$'
 
-if [ $(echo $MOUNT_OPTS | tr , \\\n | grep '^acl$' 2>/dev/null) != 'acl' ]; then
+# Check to see if acl is one of the mount points:$
+ACL="$(echo "$MOUNT_OPTS" | tr "," "\\n" | grep '^acl$')" || true
+
+if [ -z "$ACL" ]; then
 	db_input critical alternc/acluninstalled || true
 	db_go
-#    db_reset alternc/acluninstalled || true
-#    db_fset alternc/acluninstalled "seen" "false" || true
-#    exit 1
+	db_title AlternC
+        db_reset alternc/acluninstalled || true
+        db_fset alternc/acluninstalled "seen" "false" || true
+        exit 1
 fi           
 quota_activation=$(quotaon -pa 2>/dev/null |grep '^group.*on$' | /usr/bin/awk '$4 ~ /^\'$MOUNT_POINT'$/ {print $4}')