From cc49f5b27a60f6f22db2cab435e242c83c2443a9 Mon Sep 17 00:00:00 2001
From: Krystian Kuzniarek <krystian.kuzniarek@gmail.com>
Date: Thu, 18 Jul 2019 17:06:22 +0200
Subject: document a missing parent class

---
 googletest/docs/advanced.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/googletest/docs/advanced.md b/googletest/docs/advanced.md
index d31e4cfb..b4e4c215 100644
--- a/googletest/docs/advanced.md
+++ b/googletest/docs/advanced.md
@@ -1222,7 +1222,7 @@ First, you subclass the `::testing::Environment` class to define a test
 environment, which knows how to set-up and tear-down:
 
 ```c++
-class Environment {
+class Environment : public ::testing::Environment {
  public:
   virtual ~Environment() {}
 
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