diff --git a/.gitignore b/.gitignore
index 771cf5c..ce88720 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,6 @@ test.*
 pre-drv
 post-drv
 post-diff
+
+# ruff cache
+.ruff_cache
diff --git a/treefmt.toml b/treefmt.toml
index 2ae50b8..de81533 100644
--- a/treefmt.toml
+++ b/treefmt.toml
@@ -19,4 +19,4 @@ command = "ruff"
 # Command-line arguments for the command
 options = ["format"]
 # Glob pattern of files to include
-includes = [ "*.py" ]
+includes = [ "*.py", ".pyc" ]