diff --git a/man/man8/rdma.8 b/man/man8/rdma.8
index ef29b1c6..221bf334 100644
--- a/man/man8/rdma.8
+++ b/man/man8/rdma.8
@@ -19,7 +19,7 @@ rdma \- RDMA tool
 
 .ti -8
 .IR OBJECT " := { "
-.BR dev " | " link " | " system " | " statistic " }"
+.BR dev " | " link " | " resource " | " system " | " statistic " }"
 .sp
 
 .ti -8
@@ -70,6 +70,10 @@ Generate JSON output.
 .B link
 - RDMA port related.
 
+.TP
+.B resource
+- RDMA resource configuration.
+
 .TP
 .B sys
 - RDMA subsystem related.