diff --git a/dump/tools/common/include/gendumpheader b/dump/tools/common/include/gendumpheader
index d83ce20..4b00635 100644
--- a/dump/tools/common/include/gendumpheader
+++ b/dump/tools/common/include/gendumpheader
@@ -33,10 +33,10 @@
 declare -x modelNo
 modelNo=$(busctl get-property $INVENTORY_MANAGER $INVENTORY_PATH \
     $INVENTORY_ASSET_INT Model | cut -d " " -f 2 | sed "s/^\(\"\)\(.*\)\1\$/\2/g")
+
 #Variables
-declare -x serialNo
-serialNo=$(busctl get-property $INVENTORY_MANAGER $INVENTORY_PATH \
-    $INVENTORY_ASSET_INT SerialNumber | cut -d " " -f 2 | sed "s/^\(\"\)\(.*\)\1\$/\2/g")
+declare -x serialNo="0000000"
+
 declare -x dDay
 dDay=$(date -d @"$EPOCHTIME" +'%Y%m%d%H%M%S')
 declare -x bmcSerialNo
@@ -44,6 +44,9 @@
         org.freedesktop.DBus.Properties Get ss $INVENTORY_ASSET_INT \
     SerialNumber | cut -d " " -f 3 | sed "s/^\(\"\)\(.*\)\1\$/\2/g")
 
+#Source common functions
+. $DREPORT_INCLUDE/opfunctions
+
 #Function to add NULL
 function add_null() {
     local a=$1
@@ -558,6 +561,7 @@
 
 #main function
 function gen_header_package() {
+    fetch_serial_number
     dump_file_entry
     dump_section_entry
     if [ "$dump_type" = "$OP_DUMP" ]; then