From 327ca8e7e0d4cdefc6cc18eee66dbe51c0e49c43 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 9 Jul 2017 11:56:59 -0700
Subject: [PATCH] Drive home the point about feature names

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 68c7bf8..987c3b4 100644
--- a/README.md
+++ b/README.md
@@ -476,7 +476,9 @@ serde = { version = "1.0", optional = true }
 
 When we depend on `x`, we can enable the optional Serde dependency with
 `features = ["serde"]`. Similarly we can enable the optional standard library
-dependency with `features = ["std"]`.
+dependency with `features = ["std"]`. The implicit feature inferred by Cargo for
+the optional dependency is called `serde`, not `use-serde` or `with-serde`, so
+we like for explicit features to behave the same way.
 
 As a related note, Cargo requires that features are additive so a feature named
 negatively like `no-abc` is practically never correct.