diff --git a/yaml/xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml
index 856465a..53eca3e 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/Cpu.interface.yaml
@@ -52,13 +52,15 @@
       description: >
           The maximum number of threads the processor can support.
     - name: Step
-      type: string
+      type: uint16
       description: >
           The step value for this processor
+      default: 0
     - name: Microcode
-      type: string
+      type: uint32
       description: >
           The microcode information for this processor
+      default: 0
 
 enumerations:
     - name: Capability