diff --git a/MdePkg/Include/Protocol/FirmwareManagement.h b/MdePkg/Include/Protocol/FirmwareManagement.h
index e535bb697d..21220cf8aa 100644
--- a/MdePkg/Include/Protocol/FirmwareManagement.h
+++ b/MdePkg/Include/Protocol/FirmwareManagement.h
@@ -351,7 +351,10 @@ EFI_STATUS
   @retval EFI_INVALID_PARAMETER  The Image was NULL.
   @retval EFI_NOT_FOUND          The current image is not copied to the buffer.
   @retval EFI_UNSUPPORTED        The operation is not supported.
-  @retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
+  @retval EFI_SECURITY_VIOLATION The operation could not be completed due to an image corruption.
+                                 If the image is able to be read, the Image buffer will be updated
+                                 with the retrieved image contents.
+  @retval EFI_DEVICE_ERROR       The image could not be read.
 
 **/
 typedef