diff --git a/Lib/typemaps/std_string.swg b/Lib/typemaps/std_string.swg
index ef05606b4..ec44d39c5 100644
--- a/Lib/typemaps/std_string.swg
+++ b/Lib/typemaps/std_string.swg
@@ -15,7 +15,7 @@ namespace std
   class string;
 }
 
-%typemaps_std_string(std::string, char, SWIG_AsCharPtrAndSize, SWIG_FromCharPtrAndSize, %checkcode(STRING));
+%typemaps_std_string(std::string, char, SWIG_AsCharPtrAndSize, SWIG_FromCharPtrAndSize, %checkcode(STDSTRING));
 
 #else
 
diff --git a/Lib/typemaps/std_wstring.swg b/Lib/typemaps/std_wstring.swg
index 6b9702751..6dcf59976 100644
--- a/Lib/typemaps/std_wstring.swg
+++ b/Lib/typemaps/std_wstring.swg
@@ -15,7 +15,7 @@ namespace std
   class wstring;
 }
 
-%typemaps_std_string(std::wstring, wchar_t, SWIG_AsWCharPtrAndSize, SWIG_FromWCharPtrAndSize, %checkcode(UNISTRING));
+%typemaps_std_string(std::wstring, wchar_t, SWIG_AsWCharPtrAndSize, SWIG_FromWCharPtrAndSize, %checkcode(STDUNISTRING));
 
 
 #else