diff --git a/arch/arm/src/xmc4/xmc4_serial.c b/arch/arm/src/xmc4/xmc4_serial.c
index d9eaf0db53..f983cab6a4 100644
--- a/arch/arm/src/xmc4/xmc4_serial.c
+++ b/arch/arm/src/xmc4/xmc4_serial.c
@@ -644,7 +644,7 @@ static int xmc4_setup(struct uart_dev_s *dev)
 
   /* Configure the UART as an RS-232 UART */
 
-  xmc4_uart_configure(priv->uartbase, &priv->config);
+  xmc4_uart_configure(priv->channel, &priv->config);
 #endif
 
   /* Make sure that all interrupts are disabled */