diff --git a/branches/distributed-ppss/ppss.sh b/branches/distributed-ppss/ppss.sh
index b199538..44eb90d 100755
--- a/branches/distributed-ppss/ppss.sh
+++ b/branches/distributed-ppss/ppss.sh
@@ -970,6 +970,8 @@ escape_item () {
     ITEM_ESCAPED=`echo "$TMP" | \
             sed s/\\ /\\\\\\\\\\\\\\ /g | \
             sed s/\\'/\\\\\\\\\\\\\\'/g | \
+            sed s/\\\`/\\\\\\\\\\\\\\\`/g | \
+            sed s/\\|/\\\\\\\\\\\\\\|/g | \
             sed s/\&/\\\\\\\\\\\\\\&/g | \
             sed s/\;/\\\\\\\\\\\\\\;/g | \
             sed s/\(/\\\\\\\\\\(/g | \