diff --git a/api-ref/source/v2/parameters.yaml b/api-ref/source/v2/parameters.yaml
index a29b6a9f610..3d9a6563fe4 100644
--- a/api-ref/source/v2/parameters.yaml
+++ b/api-ref/source/v2/parameters.yaml
@@ -310,13 +310,13 @@ bootable:
   in: body
   required: true
   type: boolean
-bootable_1:
+bootable_response:
   description: |
     Enables or disables the bootable attribute. You
     can boot an instance from a bootable volume.
   in: body
-  required: false
-  type: boolean
+  required: true
+  type: string
 capabilities:
   description: |
     The capabilities for the back end.  The value is
diff --git a/api-ref/source/v2/volumes-v2-volumes.inc b/api-ref/source/v2/volumes-v2-volumes.inc
index 20c1414f8c6..9563d16ed43 100644
--- a/api-ref/source/v2/volumes-v2-volumes.inc
+++ b/api-ref/source/v2/volumes-v2-volumes.inc
@@ -95,7 +95,7 @@ Response Parameters
    - consistencygroup_id: consistencygroup_id
    - os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - os-volume-replication:driver_data: os-volume-replication:driver_data
    - volumes: volumes
@@ -204,7 +204,7 @@ Response Parameters
    - volume: volume
    - consistencygroup_id: consistencygroup_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - volume_type: volume_type
 
@@ -310,7 +310,7 @@ Response Parameters
    - consistencygroup_id: consistencygroup_id
    - os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - os-volume-replication:driver_data: os-volume-replication:driver_data
    - volume_type: volume_type
@@ -382,7 +382,7 @@ Response Parameters
    - volume: volume
    - consistencygroup_id: consistencygroup_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - volume_type: volume_type
 
diff --git a/api-ref/source/v3/parameters.yaml b/api-ref/source/v3/parameters.yaml
index 0af7b2b030f..2511fd43087 100644
--- a/api-ref/source/v3/parameters.yaml
+++ b/api-ref/source/v3/parameters.yaml
@@ -340,13 +340,13 @@ bootable:
   in: body
   required: true
   type: boolean
-bootable_1:
+bootable_response:
   description: |
     Enables or disables the bootable attribute. You
     can boot an instance from a bootable volume.
   in: body
-  required: false
-  type: boolean
+  required: true
+  type: string
 capabilities:
   description: |
     The capabilities for the back end.  The value is
diff --git a/api-ref/source/v3/volumes-v3-volumes.inc b/api-ref/source/v3/volumes-v3-volumes.inc
index abfabb7a474..b925c403aea 100644
--- a/api-ref/source/v3/volumes-v3-volumes.inc
+++ b/api-ref/source/v3/volumes-v3-volumes.inc
@@ -95,7 +95,7 @@ Response Parameters
    - consistencygroup_id: consistencygroup_id
    - os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - os-volume-replication:driver_data: os-volume-replication:driver_data
    - volumes: volumes
@@ -204,7 +204,7 @@ Response Parameters
    - volume: volume
    - consistencygroup_id: consistencygroup_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - volume_type: volume_type
 
@@ -310,7 +310,7 @@ Response Parameters
    - consistencygroup_id: consistencygroup_id
    - os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - os-volume-replication:driver_data: os-volume-replication:driver_data
    - volume_type: volume_type
@@ -382,7 +382,7 @@ Response Parameters
    - volume: volume
    - consistencygroup_id: consistencygroup_id
    - name: name
-   - bootable: bootable
+   - bootable: bootable_response
    - created_at: created_at
    - volume_type: volume_type