diff --git a/include/configs/ids8313.h b/include/configs/ids8313.h
index caa3dd1..4b0ec27 100644
--- a/include/configs/ids8313.h
+++ b/include/configs/ids8313.h
@@ -301,7 +301,7 @@
 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200}
 #define CONFIG_SYS_NS16550_COM1	(CONFIG_SYS_IMMR + 0x4500)
 #define CONFIG_SYS_NS16550_COM2	(CONFIG_SYS_IMMR + 0x4600)
-#define CONFIG_SYS_NS16550_CLK		(CONFIG_83XX_CLKIN * 2)
+#define CONFIG_SYS_NS16550_CLK		(get_bus_freq(0))
 
 #define CONFIG_HAS_FSL_DR_USB
 #define CONFIG_SYS_SCCR_USBDRCM	3