diff --git a/SWIG/Lib/python/pymisctypes.swg b/SWIG/Lib/python/pymisctypes.swg
index d782abb8a..001f7b285 100644
--- a/SWIG/Lib/python/pymisctypes.swg
+++ b/SWIG/Lib/python/pymisctypes.swg
@@ -3,21 +3,27 @@
  * --- ANSI/Posix C/C++ types ---
  * ------------------------------------------------------------ */
 
+%types(size_t);
 %apply unsigned long { size_t };
 %apply const unsigned long& { const size_t& };
 %apply unsigned long& { size_t& };
 
+%types(ptrdiff_t);
 %apply long { ptrdiff_t };
 %apply const long& { const ptrdiff_t& };
 %apply long& { ptrdiff_t& };
 
 #ifdef __cplusplus
+%types(std::size_t);
 %apply unsigned long { std::size_t };
 %apply const unsigned long& { const std::size_t& };
 %apply unsigned long& { std::size_t& };
 
+%types(std::ptrdiff_t);
 %apply long { std::ptrdiff_t };
 %apply const long& { const std::ptrdiff_t& };
 %apply long& { std::ptrdiff_t& };
 #endif
 
+
+