diff --git a/src/emu/mux.c b/src/emu/mux.c
index db015cf..ba2ea7f 100644
--- a/src/emu/mux.c
+++ b/src/emu/mux.c
@@ -223,11 +223,6 @@ mux_set_input(struct mux *mux, int64_t index, struct chan *chan)
 		return -1;
 	}
 
-	if (chan == mux->select) {
-		err("cannot use same input channel as select");
-		return -1;
-	}
-
 	struct mux_input *input = &mux->inputs[index];
 
 	if (input->chan != NULL) {