diff --git a/limap/line2d/dense/__init__.py b/limap/line2d/dense/__init__.py
index c9d9e17d..7bca4416 100644
--- a/limap/line2d/dense/__init__.py
+++ b/limap/line2d/dense/__init__.py
@@ -1,4 +1,8 @@
 from .extractor import DenseNaiveExtractor
 from .matcher import BaseDenseLineMatcherOptions, RoMaLineMatcher
 
-__all__ = ["BaseDenseLineMatcherOptions", "DenseNaiveExtractor", "RoMaLineMatcher"]
+__all__ = [
+    "BaseDenseLineMatcherOptions",
+    "DenseNaiveExtractor",
+    "RoMaLineMatcher",
+]