diff --git a/cfg/std.cfg b/cfg/std.cfg
index 487d073ce..1a5bd18ee 100644
--- a/cfg/std.cfg
+++ b/cfg/std.cfg
@@ -5946,7 +5946,11 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
   <!-- size_t find (const char* s, size_t pos, size_t n) const; -->
   <!-- size_t find (char c, size_t pos = 0) const;-->
   <!-- size_t find (const char* s, size_t pos = 0) const; -->
-  <function name="std::string::find,std::wstring::find,std::basic_string::find,std::string::find_first_of,std::wstring::find_first_of,std::basic_string::find_first_of,std::string::find_last_of,std::wstring::find_last_of,std::basic_string::find_last_of">
+  <!-- size_t rfind (const string& str, size_t pos = npos) const noexcept; -->
+  <!-- size_t rfind (const char* s, size_t pos = npos) const; -->
+  <!-- size_t rfind (const char* s, size_t pos, size_t n) const; -->
+  <!-- size_t rfind (char c, size_t pos = npos) const noexcept; -->
+  <function name="std::string::find,std::string::rfind,std::wstring::find,std::wstring::rfind,std::basic_string::find,std::basic_string::rfind,std::string::find_first_of,std::wstring::find_first_of,std::basic_string::find_first_of,std::string::find_last_of,std::wstring::find_last_of,std::basic_string::find_last_of">
     <noreturn>false</noreturn>
     <returnValue type="size_t"/>
     <leak-ignore/>