diff --git a/Combinatorial_map/include/CGAL/Face_graph_wrapper.h b/Combinatorial_map/include/CGAL/Face_graph_wrapper.h
index 2329063cec7..a0915e45758 100644
--- a/Combinatorial_map/include/CGAL/Face_graph_wrapper.h
+++ b/Combinatorial_map/include/CGAL/Face_graph_wrapper.h
@@ -146,7 +146,7 @@ public:
   template<unsigned int i>
   bool is_free(Dart_const_handle /* dh */) const
   { return false; } // Not possible to have a free dart with an HEG.
-  bool is_free(Dart_const_handle dh, unsigned int i) const
+  bool is_free(Dart_const_handle /*dh*/, unsigned int /*i*/) const
   { return false; } // Not possible to have a free dart with an HEG.
 
   bool is_perforated(Dart_const_handle dh) const