From d7451ac3b671b96443cfc0ffb4842f03bcd1cdfe Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Wed, 2 Aug 2017 10:51:22 +0100
Subject: [PATCH] doc/concepts.tex: Fix missing superclass in a code example.

---
 doc/concepts.tex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/concepts.tex b/doc/concepts.tex
index 759153b..f7283e4 100644
--- a/doc/concepts.tex
+++ b/doc/concepts.tex
@@ -856,7 +856,7 @@ This simple protocol can be used, for example, to implement a reference
 counting system, as follows.
 \begin{prog}
   [nick = ref]                                                  \\
-  class ReferenceCountedObject \{                               \\ \ind
+  class ReferenceCountedObject: SodObject \{                    \\ \ind
     unsigned nref = 1;                                          \\-
     void inc() \{ me@->ref.nref++; \}                           \\-
     [role = around]                                             \\
-- 
2.11.0

