diff --git a/Kernel_23/include/CGAL/Kernel/interface_macros.h b/Kernel_23/include/CGAL/Kernel/interface_macros.h
index 04b9639a91b..5da0e0c0052 100644
--- a/Kernel_23/include/CGAL/Kernel/interface_macros.h
+++ b/Kernel_23/include/CGAL/Kernel/interface_macros.h
@@ -18,7 +18,7 @@
 // It's aimed at being included from within a kernel traits class, this
 // way we share more code.
 
-// It is the responsability of the including file to correctly set the 2
+// It is the responsibility of the including file to correctly set the 2
 // macros CGAL_Kernel_pred, CGAL_Kernel_cons and CGAL_Kernel_obj.
 // And they are #undefed at the end of this file.