diff --git a/swig/idd.i b/swig/idd.i
index 913d3ba..203657c 100644
--- a/swig/idd.i
+++ b/swig/idd.i
@@ -1,7 +1,12 @@
 %ignore debugger_t;
 
+%apply unsigned char (char dtyp);
+
 %include "idd.hpp"
 
+%clear(char dtyp);
+
+
 %inline %{
 char get_event_module_name(const debug_event_t* ev, char *buf, size_t bufsize)
 {