diff --git a/configurations/yosemite4_chassis.json b/configurations/yosemite4_chassis.json
index 876b528..fac938a 100644
--- a/configurations/yosemite4_chassis.json
+++ b/configurations/yosemite4_chassis.json
@@ -9,5 +9,8 @@
         "PartNumber": "$PRODUCT_PART_NUMBER",
         "SerialNumber": "$PRODUCT_SERIAL_NUMBER",
         "SparePartNumber": "$PRODUCT_INFO_AM1"
+    },
+    "xyz.openbmc_project.Inventory.Item.Chassis": {
+        "ChassisType": "RackMount"
     }
 }
diff --git a/configurations/yosemite4_sentineldome_chassis.json b/configurations/yosemite4_sentineldome_chassis.json
index b4932df..7e9d228 100644
--- a/configurations/yosemite4_sentineldome_chassis.json
+++ b/configurations/yosemite4_sentineldome_chassis.json
@@ -15,5 +15,8 @@
     },
     "xyz.openbmc_project.Inventory.Decorator.Slot": {
         "SlotNumber": "$bus % 15"
+    },
+    "xyz.openbmc_project.Inventory.Item.Chassis": {
+        "ChassisType": "Blade"
     }
 }