diff --git a/headers/private/textencoding/CharacterSet.h b/headers/private/textencoding/CharacterSet.h
index 2df290e897..a465615fc2 100644
--- a/headers/private/textencoding/CharacterSet.h
+++ b/headers/private/textencoding/CharacterSet.h
@@ -86,4 +86,4 @@ private:
 
 }
 
-#endif CHARACTER_SET_H
+#endif // CHARACTER_SET_H
diff --git a/headers/private/textencoding/CharacterSetRoster.h b/headers/private/textencoding/CharacterSetRoster.h
index 51742042f5..5f8b1fc4b1 100644
--- a/headers/private/textencoding/CharacterSetRoster.h
+++ b/headers/private/textencoding/CharacterSetRoster.h
@@ -88,4 +88,4 @@ private:
 
 }
 
-#endif CHARACTER_SET_ROSTER_H
+#endif // CHARACTER_SET_ROSTER_H