diff --git a/grpc_cli-call.1 b/grpc_cli-call.1
index bc2490a..60ca8c4 100644
--- a/grpc_cli-call.1
+++ b/grpc_cli-call.1
@@ -6,6 +6,7 @@
 .B grpc_cli call
 .I address
 .RI [ service [\fB. method ]] 
+.I request
 .RI [ OPTION ]...\:
 .SH OPTIONS
 .TP