diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
index 2305ea3cf..4714f0af5 100644
--- a/docs/spelling_wordlist.txt
+++ b/docs/spelling_wordlist.txt
@@ -33,6 +33,7 @@ manylinux
 multi
 nightlies
 pre
+rc
 reStructuredText
 reencoding
 requote