diff --git a/Packages/Min_circle_2/web/Min_circle_2.aw b/Packages/Min_circle_2/web/Min_circle_2.aw
index b2f639d16f9..cdda7e30767 100644
--- a/Packages/Min_circle_2/web/Min_circle_2.aw
+++ b/Packages/Min_circle_2/web/Min_circle_2.aw
@@ -2400,6 +2400,9 @@ end of each file.
     #ifndef CGAL_BASIC_H
     #  include <CGAL/basic.h>
     #endif
+    #ifndef CGAL_OPTIMISATION_ASSERTIONS_H
+    #  include <CGAL/optimisation_assertions.h>
+    #endif
 
     @<Min_circle_2_adapterC2 interface and implementation>
 
@@ -2433,6 +2436,9 @@ end of each file.
     #ifndef CGAL_BASIC_H
     #  include <CGAL/basic.h>
     #endif
+    #ifndef CGAL_OPTIMISATION_ASSERTIONS_H
+    #  include <CGAL/optimisation_assertions.h>
+    #endif
 
     @<Min_circle_2_adapterH2 interface and implementation>