diff --git a/src/vhdl/nexys4.vhdl b/src/vhdl/nexys4.vhdl
index 45973e4ff..153fbac41 100644
--- a/src/vhdl/nexys4.vhdl
+++ b/src/vhdl/nexys4.vhdl
@@ -581,8 +581,8 @@ begin
       uart_rx => jclo(1),
       uart_tx => jclo(2),
 
-      buffereduart_rx => jalo(1),
-      buffereduart_tx => jalo(2),
+      buffereduart_rx(0) => jalo(1),
+      buffereduart_tx(0) => jalo(2),
 --      buffereduart2_rx => jchi(9),
 --      buffereduart2_tx => jchi(10),
       buffereduart_ringindicate => (others => '0'),