From 591798419495d9c1ad8f04dc15b380eb50ae4e40 Mon Sep 17 00:00:00 2001
From: Brian Buchalter <brian.buchalter@gusto.com>
Date: Mon, 19 Apr 2021 15:31:26 -0600
Subject: [PATCH] Update Ruby documentation for Gemfile usage (#25705)

---
 src/ruby/README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ruby/README.md b/src/ruby/README.md
index 8187d7f3b5c..a98f6f034c7 100644
--- a/src/ruby/README.md
+++ b/src/ruby/README.md
@@ -18,6 +18,11 @@ INSTALLATION
 gem install grpc
 ```
 
+If using a Gemfile and you wish to pull from a git repository or GitHub, make sure to tell bundler to retrieve submodules:
+```
+gem 'grpc', github: 'grpc/grpc', submodules: true
+```
+
 BUILD FROM SOURCE
 ---------------------
 - Clone this repository