diff --git a/drivers/memstick/Makefile b/drivers/memstick/Makefile
index dc160fb43515..98623590c7fe 100644
--- a/drivers/memstick/Makefile
+++ b/drivers/memstick/Makefile
@@ -2,9 +2,7 @@
 # Makefile for the kernel MemoryStick device drivers.
 #
 
-ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
-	EXTRA_CFLAGS		+= -DDEBUG
-endif
+subdir-ccflags-$(CONFIG_MEMSTICK_DEBUG) := -DDEBUG
 
 obj-$(CONFIG_MEMSTICK)		+= core/
 obj-$(CONFIG_MEMSTICK)		+= host/
diff --git a/drivers/memstick/core/Makefile b/drivers/memstick/core/Makefile
index 8b2b5293877e..ecd029937738 100644
--- a/drivers/memstick/core/Makefile
+++ b/drivers/memstick/core/Makefile
@@ -2,10 +2,6 @@
 # Makefile for the kernel MemoryStick core.
 #
 
-ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
-	EXTRA_CFLAGS		+= -DDEBUG
-endif
-
 obj-$(CONFIG_MEMSTICK)		+= memstick.o
 
 obj-$(CONFIG_MSPRO_BLOCK)	+= mspro_block.o
diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile
index 12530e4311d3..a1815e9dd019 100644
--- a/drivers/memstick/host/Makefile
+++ b/drivers/memstick/host/Makefile
@@ -2,9 +2,5 @@
 # Makefile for MemoryStick host controller drivers
 #
 
-ifeq ($(CONFIG_MEMSTICK_DEBUG),y)
-	EXTRA_CFLAGS			+= -DDEBUG
-endif
-
 obj-$(CONFIG_MEMSTICK_TIFM_MS)		+= tifm_ms.o
 obj-$(CONFIG_MEMSTICK_JMICRON_38X)	+= jmb38x_ms.o