diff --git a/python/docs/source/spelling_wordlist.txt b/python/docs/source/spelling_wordlist.txt
index 434d869dd9..85d7a9d837 100644
--- a/python/docs/source/spelling_wordlist.txt
+++ b/python/docs/source/spelling_wordlist.txt
@@ -81,6 +81,7 @@ hydrostatic
 ifaddrs
 imu
 incrementing
+inertially
 infofirmware
 interoperable
 io