diff --git a/drivers/char/mwave/Makefile b/drivers/char/mwave/Makefile
index 754c9e2058ed..26b4fce217b6 100644
--- a/drivers/char/mwave/Makefile
+++ b/drivers/char/mwave/Makefile
@@ -6,10 +6,10 @@
 
 obj-$(CONFIG_MWAVE) += mwave.o
 
-mwave-objs := mwavedd.o smapi.o tp3780i.o 3780i.o
+mwave-y := mwavedd.o smapi.o tp3780i.o 3780i.o
 
 # To have the mwave driver disable other uarts if necessary
 # EXTRA_CFLAGS += -DMWAVE_FUTZ_WITH_OTHER_DEVICES
 
 # To compile in lots (~20 KiB) of run-time enablable printk()s for debugging:
-EXTRA_CFLAGS += -DMW_TRACE
+ccflags-y := -DMW_TRACE