diff --git a/doc/jsonrpc.md b/doc/jsonrpc.md
index da0a96bb3b..0482f06366 100644
--- a/doc/jsonrpc.md
+++ b/doc/jsonrpc.md
@@ -3488,7 +3488,7 @@ max_io_size                 | Optional | number  | Max I/O size (bytes)
 io_unit_size                | Optional | number  | I/O unit size (bytes)
 max_aq_depth                | Optional | number  | Max number of admin cmds per AQ
 num_shared_buffers          | Optional | number  | The number of pooled data buffers available to the transport
-buf_cache_size              | Optional | number  | The number of shared buffers to cache per poll group
+buf_cache_size              | Optional | number  | The number of shared buffers to reserve for each poll group
 
 ### Example:
 
diff --git a/scripts/rpc.py b/scripts/rpc.py
index 9c37a55029..f3f540e93a 100755
--- a/scripts/rpc.py
+++ b/scripts/rpc.py
@@ -1375,7 +1375,7 @@ Format: 'user:u1 secret:s1 muser:mu1 msecret:ms1,user:u2 secret:s2 muser:mu2 mse
     p.add_argument('-u', '--io-unit-size', help='I/O unit size (bytes)', type=int)
     p.add_argument('-a', '--max-aq-depth', help='Max number of admin cmds per AQ', type=int)
     p.add_argument('-n', '--num-shared-buffers', help='The number of pooled data buffers available to the transport', type=int)
-    p.add_argument('-b', '--buf-cache-size', help='The number of shared buffers to cache per poll group', type=int)
+    p.add_argument('-b', '--buf-cache-size', help='The number of shared buffers to reserve for each poll group', type=int)
     p.set_defaults(func=nvmf_create_transport)
 
     def get_nvmf_transports(args):
diff --git a/scripts/rpc/nvmf.py b/scripts/rpc/nvmf.py
index ca121bd508..3f9559de46 100644
--- a/scripts/rpc/nvmf.py
+++ b/scripts/rpc/nvmf.py
@@ -56,7 +56,7 @@ def nvmf_create_transport(client,
         io_unit_size: I/O unit size in bytes (optional)
         max_aq_depth: Max size admin quque per controller (optional)
         num_shared_buffers: The number of pooled data buffers available to the transport (optional)
-        buf_cache_size: The number of shared buffers to cache per poll group (optional)
+        buf_cache_size: The number of shared buffers to reserve for each poll group(optional)
 
     Returns:
         True or False