diff --git a/api-ref/source/v2/volumes-v2-extensions.inc b/api-ref/source/v2/volumes-v2-extensions.inc
index 5e94752b865..68177cb1321 100644
--- a/api-ref/source/v2/volumes-v2-extensions.inc
+++ b/api-ref/source/v2/volumes-v2-extensions.inc
@@ -34,7 +34,7 @@ Response Parameters
 
 .. rest_parameters:: parameters.yaml
 
-   - updated: updated
+   - updated: updated_at
    - description: description
    - links: links
    - namespace: namespace
diff --git a/api-ref/source/v3/volumes-v3-extensions.inc b/api-ref/source/v3/volumes-v3-extensions.inc
index fd6d0cb2f5e..14082f88787 100644
--- a/api-ref/source/v3/volumes-v3-extensions.inc
+++ b/api-ref/source/v3/volumes-v3-extensions.inc
@@ -38,7 +38,7 @@ Response Parameters
 
 .. rest_parameters:: parameters.yaml
 
-   - updated: updated
+   - updated: updated_at
    - description: description_7
    - links: links
    - namespace: namespace