diff --git a/code/ObjTools.h b/code/ObjTools.h
index dfe51d328..d40241ef0 100644
--- a/code/ObjTools.h
+++ b/code/ObjTools.h
@@ -230,13 +230,13 @@ inline char_t getFloat( char_t it, char_t end, float &value )
  */
 template<class string_type>
 unsigned int tokenize( const string_type& str, std::vector<string_type>& tokens, 
-						 const string_type& delimiters )
+						 const string_type& delimiters ) 
 {
 	// Skip delimiters at beginning.
-	string_type::size_type lastPos = str.find_first_not_of( delimiters, 0 );
+	typename string_type::size_type lastPos = str.find_first_not_of( delimiters, 0 );
 
 	// Find first "non-delimiter".
-	size_t pos = str.find_first_of( delimiters, lastPos );
+	typename string_type::size_type pos = str.find_first_of( delimiters, lastPos );
 	while ( string_type::npos != pos || string_type::npos != lastPos )
 	{
 		// Found a token, add it to the vector.