diff --git a/.typos.toml b/.typos.toml
index 22a707ba..9f673573 100644
--- a/.typos.toml
+++ b/.typos.toml
@@ -9,4 +9,5 @@ extend-ignore-re = [
 
   # Often used in tests as a partial match for `foo`
   "fo",
+  "FO",
 ]