diff --git a/examples/simple-proliant.py b/examples/simple-proliant.py
index 9645b34..ca481c3 100644
--- a/examples/simple-proliant.py
+++ b/examples/simple-proliant.py
@@ -42,4 +42,6 @@ print ("Redfish API version : %s \n" % remote_mgmt.get_api_version())
 
 print("Bios version : {}\n".format(remote_mgmt.Systems.systems_list[0].get_bios_version()))
 
+print("Serial Number : {}\n".format(remote_mgmt.Systems.systems_list[0].get_serialnumber()))
+
 remote_mgmt.logout()
diff --git a/redfish/types.py b/redfish/types.py
index d462731..80185dd 100644
--- a/redfish/types.py
+++ b/redfish/types.py
@@ -186,6 +186,15 @@ class Systems(Base):
             # Hopefully this kind of discrepencies will be fixed with Redfish 1.0 (August)
             return self.data.BiosVersion
 
+    def get_serialnumber(self):
+        try:
+            # Returned by proliant
+            return self.data.SerialNumber
+        except:
+            # Returned by mockup.
+            # Hopefully this kind of discrepencies will be fixed with Redfish 1.0 (August)
+            return ""
+
 
 class SystemsCollection(BaseCollection):
     """Class to manage redfish ManagersCollection data."""