diff --git a/Visibility_complex/include/CGAL/Shortest_path_point_traits.h b/Visibility_complex/include/CGAL/Shortest_path_point_traits.h
index e14af6cbbf8..5675ddfc9c6 100644
--- a/Visibility_complex/include/CGAL/Shortest_path_point_traits.h
+++ b/Visibility_complex/include/CGAL/Shortest_path_point_traits.h
@@ -17,8 +17,8 @@
 //
 // Author(s)     : Pierre Angelier, Michel Pocchiola
 
-#ifndef SHORTEST_PATH_POINT_TRAITS_H
-#define SHORTEST_PATH_POINT_TRAITS_H
+#ifndef CGAL_SHORTEST_PATH_POINT_TRAITS_H
+#define CGAL_SHORTEST_PATH_POINT_TRAITS_H
 
 #include <CGAL/Visibility_complex_point_traits.h>
 
@@ -76,4 +76,4 @@ private:
 
 CGAL_END_NAMESPACE
 
-#endif // SHORTEST_PATH_TRAITS_H
+#endif // CGAL_SHORTEST_PATH_TRAITS_H
diff --git a/Visibility_complex/include/CGAL/Shortest_path_polygon_traits.h b/Visibility_complex/include/CGAL/Shortest_path_polygon_traits.h
index f5340041fdc..48dc8565577 100644
--- a/Visibility_complex/include/CGAL/Shortest_path_polygon_traits.h
+++ b/Visibility_complex/include/CGAL/Shortest_path_polygon_traits.h
@@ -17,8 +17,8 @@
 //
 // Author(s)     : Pierre Angelier, Michel Pocchiola
 
-#ifndef SHORTEST_PATH_POLYGON_TRAITS_H
-#define SHORTEST_PATH_POLYGON_TRAITS_H
+#ifndef CGAL_SHORTEST_PATH_POLYGON_TRAITS_H
+#define CGAL_SHORTEST_PATH_POLYGON_TRAITS_H
 
 #include <CGAL/Visibility_complex_polygon_traits.h>
 
@@ -96,4 +96,4 @@ private:
 
 CGAL_END_NAMESPACE
 
-#endif // SHORTEST_PATH_POLYGON_TRAITS_H
+#endif // CGAL_SHORTEST_PATH_POLYGON_TRAITS_H
diff --git a/Visibility_complex/include/CGAL/predicates/Visibility_complex_ftC2.h b/Visibility_complex/include/CGAL/predicates/Visibility_complex_ftC2.h
index 00e75060485..9726e62bf4c 100644
--- a/Visibility_complex/include/CGAL/predicates/Visibility_complex_ftC2.h
+++ b/Visibility_complex/include/CGAL/predicates/Visibility_complex_ftC2.h
@@ -17,8 +17,8 @@
 //
 // Author(s)     : Pierre Angelier, Michel Pocchiola
 
-#ifndef VISIBILITY_COMPLEX_FTC2_H
-#define VISIBILITY_COMPLEX_FTC2_H
+#ifndef CGAL_VISIBILITY_COMPLEX_FTC2_H
+#define CGAL_VISIBILITY_COMPLEX_FTC2_H
 
 #include <CGAL/sign_utils.h>
 #include <CGAL/predicates/kernel_ftC2.h>
@@ -383,4 +383,4 @@ CGAL_END_NAMESPACE
 #endif // CGAL_ARITHMETIC_FILTER_VISIBILITY_COMPLEX_FTC2_H
 #endif
 
-#endif // VISIBILITY_COMPLEX_FTC2_H
+#endif // CGAL_VISIBILITY_COMPLEX_FTC2_H