diff --git a/runtime/README.md b/runtime/README.md
index c5f3fb26da..4280210d1a 100644
--- a/runtime/README.md
+++ b/runtime/README.md
@@ -992,7 +992,7 @@ Command Code: `0x4154_5348` ("ATSH")
 | measurement | u8[48]   | Digest of the image requested for authorization. The `source` field needs to be set to '1` for InRequest, otherwise<br />this field is ignored.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
 | context     | u8[48]   | Context field for `svn`; e.g., a hash of the public key that authenticated the SVN. |
 | flags       | u32      | See AUTHORIZE_AND_STASH_FLAGS below |
-| source      | u32      | This field identifies the source of the digest to be used to compare with the SoC's<br />SHA digest in the SoC Manifest<br /><br />Values<br />1 - InRequest - Use the hash in the 'measurement' field of this command<br />2 - ShaAcc - Use the result of the SHA Accelerator.<br />3 - LoadAddress - The image located in the `LoadAddress` will be streamed to the SHA Accelerator to <br />               retrieve the digest that will be used for authorization.<br />4 - StagingAddress - The image located in the `StagingAddress` will be streamed to the SHA Accelerator to<br />               retrieve the digest that will be used for authorization |
+| source      | u32      | This field identifies the source of the digest to be used to compare with the SoC's<br />SHA digest in the SoC Manifest<br /><br />Values<br />1 - InRequest - Use the hash in the 'measurement' field of this command<br /><br />2 - LoadAddress - The image located in the `ImageLoadAddress` will be streamed to the SHA Accelerator to <br />               retrieve the digest that will be used for authorization.<br />3 - ImageStagingAddress - The image located in the `StagingAddress` will be streamed to the SHA Accelerator to<br />               retrieve the digest that will be used for authorization |
 
 *Table: `AUTHORIZE_AND_STASH_FLAGS` input flags*
 | **Name**    | **Value** |