diff --git a/doc/jsonrpc.md b/doc/jsonrpc.md
index 7ee6ce9f1..5b06b14e4 100644
--- a/doc/jsonrpc.md
+++ b/doc/jsonrpc.md
@@ -779,14 +779,14 @@ Example response:
 
 Construct new OCF bdev.
 Command accepts cache mode that is going to be used.
-Currently, we support Write-Through and Pass-Through OCF cache modes.
+Currently, we support Write-Through, Pass-Through and Write-Back OCF cache modes.
 
 ### Parameters
 
 Name                    | Optional | Type        | Description
 ----------------------- | -------- | ----------- | -----------
 name                    | Required | string      | Bdev name to use
-mode                    | Required | string      | OCF cache mode ('wt' or 'pt')
+mode                    | Required | string      | OCF cache mode ('wb' or 'wt' or 'pt')
 cache_bdev_name         | Required | string      | Name of underlying cache bdev
 core_bdev_name          | Required | string      | Name of underlying core bdev
 
diff --git a/scripts/rpc.py b/scripts/rpc.py
index bd28ef48d..3bd8d99b2 100755
--- a/scripts/rpc.py
+++ b/scripts/rpc.py
@@ -183,7 +183,7 @@ if __name__ == "__main__":
     p = subparsers.add_parser('construct_ocf_bdev',
                               help='Add an OCF block device')
     p.add_argument('name', help='Name of resulting OCF bdev')
-    p.add_argument('mode', help='OCF cache mode', choices=['wt', 'pt'])
+    p.add_argument('mode', help='OCF cache mode', choices=['wb', 'wt', 'pt'])
     p.add_argument('cache_bdev_name', help='Name of underlying cache bdev')
     p.add_argument('core_bdev_name', help='Name of unerlying core bdev')
     p.set_defaults(func=construct_ocf_bdev)
diff --git a/scripts/rpc/bdev.py b/scripts/rpc/bdev.py
index dcbf9b1ff..23536f803 100644
--- a/scripts/rpc/bdev.py
+++ b/scripts/rpc/bdev.py
@@ -73,7 +73,7 @@ def construct_ocf_bdev(client, name, mode, cache_bdev_name, core_bdev_name):
 
     Args:
         name: name of constructed OCF bdev
-        mode: OCF cache mode: {'wt', 'pt'}
+        mode: OCF cache mode: {'wb', 'wt', 'pt'}
         cache_bdev_name: name of underlying cache bdev
         core_bdev_name: name of underlying core bdev