diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index de3e1c2b..66709abd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -11,3 +11,4 @@ repos:
   hooks:
   - id: ruff
     args: ['--ignore=E741,E501']
+  - id: ruff-format
diff --git a/test/test_libwacom.py b/test/test_libwacom.py
index e123985b..5d344a0f 100644
--- a/test/test_libwacom.py
+++ b/test/test_libwacom.py
@@ -39,7 +39,9 @@ def add_to_config(self, config: ConfigParser):
 
     @classmethod
     def generic_pen(cls) -> "StylusEntry":
-        return cls(id="0x0:0xfffff", name="General Pen", paired_stylus_ids=["0x0:0xffffe"])
+        return cls(
+            id="0x0:0xfffff", name="General Pen", paired_stylus_ids=["0x0:0xffffe"]
+        )
 
     @classmethod
     def generic_eraser(cls) -> "StylusEntry":
diff --git a/tools/clean_svg.py b/tools/clean_svg.py
index 612bdfc1..02e70297 100755
--- a/tools/clean_svg.py
+++ b/tools/clean_svg.py
@@ -304,11 +304,12 @@ def clean_svg(root, tabletname):
 if __name__ == "__main__":
     parser = ArgumentParser(description="Clean SVG files for libwacom")
     parser.add_argument(
-        "--ignore-missing", action="store_true", default=False, help="Ignore .tablet files without a Layout"
-    )
-    parser.add_argument(
-        "filename", type=str, help="SVG file to clean", metavar="FILE"
+        "--ignore-missing",
+        action="store_true",
+        default=False,
+        help="Ignore .tablet files without a Layout",
     )
+    parser.add_argument("filename", type=str, help="SVG file to clean", metavar="FILE")
     parser.add_argument(
         "tabletname",
         type=str,
@@ -321,17 +322,19 @@ def clean_svg(root, tabletname):
     tabletname = args.tabletname
     if args.filename.endswith(".tablet"):
         import configparser
+
         config = configparser.ConfigParser()
         config.read(args.filename)
         try:
             svgname = config["Device"]["Layout"]
         except KeyError:
-            print(f"{args.filename} does not specify a layout, skipping", file=sys.stderr)
+            print(
+                f"{args.filename} does not specify a layout, skipping", file=sys.stderr
+            )
             sys.exit(0 if args.ignore_missing else 77)
         svgfile = Path(args.filename).parent / "layouts" / svgname
         tabletname = config["Device"]["Name"]
 
-
     ET.register_namespace("", NAMESPACE)
     try:
         tree = ET.parse(svgfile)
diff --git a/tools/show-stylus.py b/tools/show-stylus.py
index cd010c89..26be13c4 100755
--- a/tools/show-stylus.py
+++ b/tools/show-stylus.py
@@ -38,23 +38,23 @@
 
 
 class Ansi:
-    clearline = "\x1B[K"
+    clearline = "\x1b[K"
 
     @classmethod
     def up(cls, count):
-        return f"\x1B[{count}A"
+        return f"\x1b[{count}A"
 
     @classmethod
     def down(cls, count):
-        return f"\x1B[{count}B"
+        return f"\x1b[{count}B"
 
     @classmethod
     def right(cls, count):
-        return f"\x1B[{count}C"
+        return f"\x1b[{count}C"
 
     @classmethod
     def left(cls, count):
-        return f"\x1B[{count}D"
+        return f"\x1b[{count}D"
 
 
 def die(msg):
@@ -161,7 +161,7 @@ def load_data_files():
             if len(ids) > 1:
                 _, sid = map(lambda x: int(x, 16), ids)
             else:
-                _ = 0x56a  # vid
+                _ = 0x56A  # vid
                 sid = int(ids[0], 16)
             # FIXME: vendor should be used here, let's do that when we figure out
             # who needs it.