diff --git a/check_esxi_hardware.py b/check_esxi_hardware.py
index 1577b09..77ec6c2 100755
--- a/check_esxi_hardware.py
+++ b/check_esxi_hardware.py
@@ -1036,6 +1036,7 @@ if (urlise_country != '') :
 # If this is a blade server, also output chassis serial number as additional info
 if (isblade == "yes") :
   SerialNumber += " Chassis S/N: %s " % (SerialChassis)
+  xdata['ChassisSerialNumber'] = SerialChassis
 
 # Output performance data
 perf = '|'