diff --git a/src/skills/nix-style/SKILL.md b/src/skills/nix-style/SKILL.md
index 29be634..196d6e0 100644
--- a/src/skills/nix-style/SKILL.md
+++ b/src/skills/nix-style/SKILL.md
@@ -13,7 +13,7 @@ Read every Markdown file under [`rules/`](rules/) before applying this skill.
 Discover rule files from the skill source:
 
 ```bash
-find src/skills/nix-style/rules -type f -name '*.md' -print | sort
+find src/skills/nix-style/rules -maxdepth 1 -type f -name '*.md' -print | sort
 ```
 
 Finish when all discovered rule files have been read.