diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index e672ba2..0ff59f1 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -4081,8 +4081,9 @@ The language requires operators `=`, `()`, `[]`, and `->` to be members.
 An overload set may have some members that do not directly access `private` data:
 
     class Foobar {
-        void foo(int x)    { /* manipulate private data */ }
-        void foo(double x) { foo(std::round(x)); }
+    public:
+        void foo(long x)    { /* manipulate private data */ }
+        void foo(double x) { foo(std::lround(x)); }
         // ...
     private:
         // ...