diff --git a/arch/ppc/platforms/mpc866ads_setup.c b/arch/ppc/platforms/mpc866ads_setup.c
index 8a0c07eb4449157796fb0925da4483d4cef54843..5b05d4bd0df7de168959af76285423ee2b847fc7 100644
--- a/arch/ppc/platforms/mpc866ads_setup.c
+++ b/arch/ppc/platforms/mpc866ads_setup.c
@@ -369,7 +369,7 @@ int __init mpc866ads_init(void)
 	ppc_sys_device_setfunc(MPC8xx_CPM_SMC1, PPC_SYS_FUNC_UART);
 #endif
 
-#ifdef CONFIG_SERIAL_CPM_SMC
+#ifdef CONFIG_SERIAL_CPM_SMC2
 	ppc_sys_device_enable(MPC8xx_CPM_SMC2);
 	ppc_sys_device_setfunc(MPC8xx_CPM_SMC2, PPC_SYS_FUNC_UART);
 #endif