diff --git a/winixd/core/postparser.h b/winixd/core/postparser.h
index ccf1728..dde1404 100644
--- a/winixd/core/postparser.h
+++ b/winixd/core/postparser.h
@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2008-2021, Tomasz Sowa
+ * Copyright (c) 2008-2022, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -111,7 +111,7 @@ protected:
 		if( !added )
 		{
 			name += L"_inc";
-			name += Toa(var_index);
+			pt::Toa(var_index, name, false, 10, 5);
 			res = post_tab->insert( std::make_pair(name, value) );
 			added = res.second;
 			var_index += 1;