diff --git a/.vscode/settings.json b/.vscode/settings.json
index 5f4c531..ae1e84e 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,7 @@
 {
     "cSpell.words": [
         "argh",
+        "behaviour",
         "bpaf",
         "configurability",
         "coreutils",