diff --git a/lib/uart/uart_xil.vhd b/lib/uart/uart_xil.vhd
index d221502..1ad2ce7 100644
--- a/lib/uart/uart_xil.vhd
+++ b/lib/uart/uart_xil.vhd
@@ -41,7 +41,7 @@ begin
 baud_timer:
 process(clk)
 begin
-	if rising_edge(CLK_I) then
+	if rising_edge(clk) then
 		if rst = '1' then
 			baud_count <= (others => '0');
 		elsif baud_count = ctrl.baudrate then