diff --git a/bindings/rig.swg b/bindings/rig.swg
index 3ecb92e9a..0731b1275 100644
--- a/bindings/rig.swg
+++ b/bindings/rig.swg
@@ -79,6 +79,8 @@ typedef channel_t * const_channel_t_p;
  */
 #define METHOD1GET(f, t1) t1 f (void) \
 				{ t1 _##t1; self->error_status = rig_##f(self->rig, &_##t1); return _##t1; }
+#define METHOD1SET(f, t1) t1 f (void) \
+				{ t1 _##t1; self->error_status = rig_##f(self->rig, _##t1); return _##t1; }
 
 /*
  * declare wrapper method with one output argument besides RIG* and vfo
@@ -363,7 +365,7 @@ typedef channel_t * const_channel_t_p;
 	METHOD3(send_dtmf, const_char_string)
 	METHOD3(send_morse, const_char_string)
 	METHOD3(vfo_op, vfo_op_t)
-    METHOD3(set_vfo_opt, int)
+    METHOD1SET(set_vfo_opt, int)
 	METHOD2(scan, scan_t, int)
 	METHODSIMPLESET(level, int, i, RIG_LEVEL_IS_FLOAT(stg))
 	METHODSIMPLESET(level, float, f, !RIG_LEVEL_IS_FLOAT(stg))