diff --git a/Straight_skeleton_2/doc/Straight_skeleton_2/CGAL/Straight_skeleton_2.h b/Straight_skeleton_2/doc/Straight_skeleton_2/CGAL/Straight_skeleton_2.h
index 0c5bb73695e..c99709fa9fa 100644
--- a/Straight_skeleton_2/doc/Straight_skeleton_2/CGAL/Straight_skeleton_2.h
+++ b/Straight_skeleton_2/doc/Straight_skeleton_2/CGAL/Straight_skeleton_2.h
@@ -116,8 +116,8 @@ Starting from any border contour halfedge, circulating the structure walks throu
 halfedges and traces the vertices of the polygon's contours (in opposite order).
 
 Starting from any non-border but contour halfedge, circulating the structure walks counter-clockwise
-around the face corresponding to that contour halfedge. [[The vertices around a face always describe
-a non-convex weakly simple polygon.]] @fixme
+around the face corresponding to that contour halfedge. The vertices around a face always describe
+a non-convex weakly simple polygon.
 
 A vertex is the intersection of contour and/or skeleton edges. Since a skeleton edge is defined
 by 2 contour edges, any vertex is itself defined by a unique set of contour edges. These are called the
diff --git a/Straight_skeleton_2/doc/Straight_skeleton_2/dependencies b/Straight_skeleton_2/doc/Straight_skeleton_2/dependencies
index e0ec43f35ca..07e853edaf1 100644
--- a/Straight_skeleton_2/doc/Straight_skeleton_2/dependencies
+++ b/Straight_skeleton_2/doc/Straight_skeleton_2/dependencies
@@ -4,6 +4,7 @@ STL_Extension
 Algebraic_foundations
 Circulator
 Stream_support
+BGL
 HalfedgeDS
 Boolean_set_operations_2
 Polygon