diff --git a/src/ruby/ext/grpc/rb_server.c b/src/ruby/ext/grpc/rb_server.c
index 89582375100b9deefb75e07114be6333573799a3..c43eed224b1b3f152fd7c2c2cf466daa1b94e87a 100644
--- a/src/ruby/ext/grpc/rb_server.c
+++ b/src/ruby/ext/grpc/rb_server.c
@@ -337,7 +337,7 @@ static VALUE grpc_rb_server_destroy(int argc, VALUE *argv, VALUE self) {
   call-seq:
     // insecure port
     insecure_server = Server.new(cq, {'arg1': 'value1'})
-    insecure_server.add_http2_port('mydomain:50051', :this_port_is_not_secure)
+    insecure_server.add_http2_port('mydomain:50051', :this_port_is_insecure)
 
     // secure port
     server_creds = ...