diff --git a/Source/Swig/swig.h b/Source/Swig/swig.h
index cda904125..153030031 100644
--- a/Source/Swig/swig.h
+++ b/Source/Swig/swig.h
@@ -183,7 +183,8 @@ extern void        SwigType_reset_scopes();
 extern void        SwigType_set_scope_name(String_or_char *name);
 extern void        SwigType_merge_scope(Hash *scope, String_or_char *prefix);
 extern Hash       *SwigType_pop_scope();
-extern String     *SwigType_typedef_resolve(SwigType *t);
+extern SwigType   *SwigType_typedef_resolve(SwigType *t);
+extern SwigType   *SwigType_typedef_resolve_all(SwigType *t);
 extern int         SwigType_istypedef(SwigType *t);
 extern int         SwigType_cmp(String_or_char *pat, SwigType *t);
 extern int         SwigType_array_ndim(SwigType *t);