diff --git a/config.md b/config.md
index 4e9c3fc02..793911866 100644
--- a/config.md
+++ b/config.md
@@ -146,8 +146,8 @@ Runtimes MUST/SHOULD/MAY implement the following option strings for Linux:
  `sync`           | MUST        | [^1]
  `tmpcopyup`      | MAY         | copy up the contents to a tmpfs
  `unbindable`     | MUST        | [^2] (bind mounts)
- `idmap`          | SHOULD      | Indicates that the mount has `uidMappings` and `gidMappings` specified. This option SHOULD NOT be passed to the underlying [`mount(2)`][mount.2] call. If supported, the runtime MUST return an error if this option is provided and either of `uidMappings` or `gidMappings` are empty or not present.
- `ridmap`         | SHOULD      | Indicates that the mount has `uidMappings` and `gidMappings` specified, and the mapping is applied recursively [^3]. This option SHOULD NOT be passed to the underlying [`mount(2)`][mount.2] call. If supported, the runtime MUST return an error if this option is provided and either of `uidMappings` or `gidMappings` are empty or not present.
+ `idmap`          | SHOULD      | Indicates that the mount has `uidMappings` and `gidMappings` specified. This option SHOULD NOT be passed to the underlying [`mount(2)`][mount.2] call.
+ `ridmap`         | SHOULD      | Indicates that the mount has `uidMappings` and `gidMappings` specified, and the mapping is applied recursively [^3]. This option SHOULD NOT be passed to the underlying [`mount(2)`][mount.2] call.
 
 [^1]: Corresponds to [`mount(8)` (filesystem-independent)][mount.8-filesystem-independent].
 [^2]: Corresponds to [`mount(8)` (filesystem-specific)][mount.8-filesystem-specific].