diff --git a/pyghmi/redfish/oem/lenovo/smm3.py b/pyghmi/redfish/oem/lenovo/smm3.py
index c11d2a2b..66aa8d08 100644
--- a/pyghmi/redfish/oem/lenovo/smm3.py
+++ b/pyghmi/redfish/oem/lenovo/smm3.py
@@ -101,15 +101,16 @@ class OEMHandler(generic.OEMHandler):
             url = '/redfish/v1/Chassis/chassis1/Oem/Lenovo/Nodes/{}'.format(nodeid)
             self._do_web_request(url, parms, method='PATCH')
 
-    def _get_cpu_inventory(self, withids=False):
+    def _get_cpu_inventory(self, onlynames=False, withids=False, urls=None):
         # Empty generator: no CPU inventory items for this OEM handler.
         yield from ()
 
-    def _get_mem_inventory(self, withids=False):
+
+    def _get_mem_inventory(self, onlyname=False, withids=False, urls=None):
         # Empty generator: no memory inventory items for this OEM handler.
         yield from ()
 
-    def _get_adp_inventory(self, withids=False, urls=None):
+    def _get_adp_inventory(self, onlyname=False, withids=False, urls=None):
         # Empty generator: no adapter inventory items for this OEM handler.
         yield from ()
 
diff --git a/pyghmi/redfish/oem/lenovo/xcc.py b/pyghmi/redfish/oem/lenovo/xcc.py
index 36520eb7..ba8137ab 100644
--- a/pyghmi/redfish/oem/lenovo/xcc.py
+++ b/pyghmi/redfish/oem/lenovo/xcc.py
@@ -1893,7 +1893,7 @@ class OEMHandler(generic.OEMHandler):
                     for umd in adp.get('unmanagedDisks', []):
                         yield 'Disk {0}'.format(umd['slotNo']), bdata
 
-    def _get_cpu_inventory(self):
+    def _get_cpu_inventory(self, onlynames=False, withids=False, urls=None):
         procdata = self.get_cached_data('lenovo_cached_proc')
         if not procdata:
             if self.wc:
@@ -1910,7 +1910,7 @@ class OEMHandler(generic.OEMHandler):
                 yield ('Processor {0}'.format(proc['processors_name']),
                        procinfo)
 
-    def _get_mem_inventory(self):
+    def _get_mem_inventory(self, onlyname=False, withids=False, urls=None):
         memdata = self.get_cached_data('lenovo_cached_memory')
         if not memdata:
             if self.wc: