diff --git a/yaml/xyz/openbmc_project/Control/Power/Mode.interface.yaml b/yaml/xyz/openbmc_project/Control/Power/Mode.interface.yaml
index d7a707b..70a0365 100644
--- a/yaml/xyz/openbmc_project/Control/Power/Mode.interface.yaml
+++ b/yaml/xyz/openbmc_project/Control/Power/Mode.interface.yaml
@@ -9,6 +9,9 @@
           This property shall contain the computer system power mode setting.
           This defines the processor speed based on the priority of power
           consumption and performance.
+      errors:
+          - xyz.openbmc_project.Common.Error.InvalidArgument
+          - xyz.openbmc_project.Common.Error.NotAllowed
 
     - name: SafeMode
       type: boolean