diff --git a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
index b93514647a2..16a2b1b9010 100644
--- a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
+++ b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_ftC2.h
@@ -29,6 +29,7 @@ CGAL_BEGIN_NAMESPACE
 #ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
 template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
 #endif
+/*  */
 Oriented_side
 power_testC2(
     const Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px,
@@ -85,6 +86,7 @@ power_testC2(
 #ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
 template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
 #endif
+/*  */
 Oriented_side
 power_testC2(
     const Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &px,
diff --git a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
index 58764500f2f..00041b13faf 100644
--- a/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
+++ b/Packages/Interval_arithmetic/include/CGAL/Arithmetic_filter/predicates/Regular_triangulation_rtH2.h
@@ -29,6 +29,7 @@ CGAL_BEGIN_NAMESPACE
 #ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
 template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
 #endif
+/*  */
 Oriented_side
 power_testH2(
     const Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &phx,
@@ -97,6 +98,7 @@ power_testH2(
 #ifndef CGAL_CFG_NO_EXPLICIT_TEMPLATE_FUNCTION_ARGUMENT_SPECIFICATION
 template < class CGAL_IA_CT, class CGAL_IA_ET, class CGAL_IA_CACHE >
 #endif
+/*  */
 Oriented_side
 power_testH2(
     const Filtered_exact <CGAL_IA_CT, CGAL_IA_ET, CGAL_IA_CACHE> &phx,