diff --git a/cores/c64/rtl/mist/c64_mist.vhd b/cores/c64/rtl/mist/c64_mist.vhd
index e77c2a1..49118a4 100644
--- a/cores/c64/rtl/mist/c64_mist.vhd
+++ b/cores/c64/rtl/mist/c64_mist.vhd
@@ -1273,7 +1273,7 @@ begin
 		cass_motor => cass_motor,
 		cass_sense => cass_sense,
 		osd_play_stop_toggle => st_tap_play_btn,
-		ear_input => UART_RX
+		ear_input => UART_RX and not st_user_port_uart;
 	);
 
 	comp_sync : entity work.composite_sync