diff --git a/docs/user-guide/persistent-volumes/index.md b/docs/user-guide/persistent-volumes/index.md
index 5232f068cd..8c69a75379 100644
--- a/docs/user-guide/persistent-volumes/index.md
+++ b/docs/user-guide/persistent-volumes/index.md
@@ -150,7 +150,7 @@ In the CLI, the access modes are abbreviated to:
 | HostPath             | x            | -           | -            |
 | iSCSI                | x            | x           | -            |
 | NFS                  | x            | x           | x            |
-| RDB                  | x            | x           | -            |
+| RBD                  | x            | x           | -            |
 | VsphereVolume        | x            | -           | -            |
 
 ### Class