diff --git a/Shape_detection/include/CGAL/Shape_detection/Region_growing/Segment_set/Least_squares_line_fit_sorting.h b/Shape_detection/include/CGAL/Shape_detection/Region_growing/Segment_set/Least_squares_line_fit_sorting.h
index ad84e4f8c29..ab11df8b35d 100644
--- a/Shape_detection/include/CGAL/Shape_detection/Region_growing/Segment_set/Least_squares_line_fit_sorting.h
+++ b/Shape_detection/include/CGAL/Shape_detection/Region_growing/Segment_set/Least_squares_line_fit_sorting.h
@@ -61,7 +61,7 @@ namespace Segment_set {
     using Neighbor_query = NeighborQuery;
     using Segment_map = SegmentMap;
     using Segment_type = typename Segment_map::value_type;
-    
+
     using Item = typename InputRange::const_iterator;
     using Region = std::vector<Item>;
     using Seed_range = std::vector<Item>;