diff --git a/.github/actions/spelling/expect.txt b/.github/actions/spelling/expect.txt
index c4b1ee849..8a048c711 100644
--- a/.github/actions/spelling/expect.txt
+++ b/.github/actions/spelling/expect.txt
@@ -74,6 +74,7 @@ WCA_ACCENT_POLICY
 HGlobal
 dopusrt
 firefox
+Firefox
 msedge
 svgc
 ime