diff --git a/echo.S b/echo.S
index 58b2573..7c29fec 100644
--- a/echo.S
+++ b/echo.S
@@ -3,8 +3,8 @@
 
 .equ UART_DATA, 0
 .equ UART_STATUS, 1
-.equ UART_RX_READY = 0b10
-.equ UART_TX_READY = 0b01
+.equ UART_RX_READY, 0b10
+.equ UART_TX_READY, 0b01
 
 _start:
     li a0, 0x1000