diff --git a/Homogeneous_kernel/include/CGAL/Homogeneous_converter.h b/Homogeneous_kernel/include/CGAL/Homogeneous_converter.h
index 876f51629c6..22ee1e22922 100644
--- a/Homogeneous_kernel/include/CGAL/Homogeneous_converter.h
+++ b/Homogeneous_kernel/include/CGAL/Homogeneous_converter.h
@@ -192,6 +192,15 @@ public:
 					     a.orientation());
     }
 
+    typename K2::Circle_3
+    operator()(const typename K1::Circle_3 &a) const
+    {
+        typedef typename K2::Circle_3  Circle_3;
+	return Circle_3(operator()(a.center()),
+		        c(a.squared_radius()),
+			c(a.supporting_plane()));
+    }
+
     typename K2::Triangle_3
     operator()(const typename K1::Triangle_3 &a) const
     {