diff --git a/second-edition/dictionary.txt b/second-edition/dictionary.txt
index f5b416ea9..7833be24b 100644
--- a/second-edition/dictionary.txt
+++ b/second-edition/dictionary.txt
@@ -319,6 +319,7 @@ proc
 pthreads
 pushups
 QuitMessage
+quux
 RAII
 randcrate
 RangeFrom