diff --git a/docs/source/spelling_wordlist.txt b/docs/source/spelling_wordlist.txt
index da7cfb7bf9..0b6b6ec8dc 100644
--- a/docs/source/spelling_wordlist.txt
+++ b/docs/source/spelling_wordlist.txt
@@ -999,6 +999,7 @@ vsicurl
 vto
 vunits
 Warmerdam
+Wdocumentation
 webmerc
 Webmercator
 webpage