diff --git a/include/fc/string.hpp b/include/fc/string.hpp
index ff5207b..b262c90 100644
--- a/include/fc/string.hpp
+++ b/include/fc/string.hpp
@@ -16,6 +16,8 @@ namespace fc
   fc::string to_string( uint64_t );
   fc::string to_string( int64_t );
   fc::string to_string( uint16_t );
+  inline fc::string to_string( int32_t v ) { return to_string( int64_t(v) ); }
+  inline fc::string to_string( uint32_t v ){ return to_string( uint64_t(v) ); }
 #ifdef __APPLE__
   inline fc::string to_string( size_t s) { return to_string(uint64_t(s)); }
 #elif defined( WIN32 )