diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 5ccd0be23a335717ae39d2be0f5f2545fd96b772..5c9bcea7476732d77e6f3081b86956ec9db3f947 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -17,6 +17,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/init.h>
+#include <linux/sysdev.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
 
diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
index 9cc4253d7bbc75c0d080359b43315461f08c407d..d86e6f18bac9f736ddd7beca0ae9e3a4e88eb88f 100644
--- a/arch/arm/mach-s3c2410/mach-qt2410.c
+++ b/arch/arm/mach-s3c2410/mach-qt2410.c
@@ -27,6 +27,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/init.h>
+#include <linux/sysdev.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
 #include <linux/spi/spi.h>
diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c
index c3cc4bf158f6281dc244a645711ad37201d2ab61..866ff71c01ddf27861192763270f72cf51dac212 100644
--- a/arch/arm/mach-s3c2440/mach-rx3715.c
+++ b/arch/arm/mach-s3c2440/mach-rx3715.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/tty.h>
 #include <linux/console.h>
+#include <linux/sysdev.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
diff --git a/arch/arm/plat-s3c24xx/common-smdk.c b/arch/arm/plat-s3c24xx/common-smdk.c
index 908efa7d745fbc98fea12ecd38079e3dcd41dbaf..1dd60a689ae51eaa56335e2148dbb76557cf7179 100644
--- a/arch/arm/plat-s3c24xx/common-smdk.c
+++ b/arch/arm/plat-s3c24xx/common-smdk.c
@@ -18,6 +18,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/init.h>
+#include <linux/sysdev.h>
 #include <linux/platform_device.h>
 
 #include <linux/mtd/mtd.h>
diff --git a/arch/arm/plat-s3c24xx/pm-simtec.c b/arch/arm/plat-s3c24xx/pm-simtec.c
index bd965f2feecae51e053dba07f04d697707546c31..cb0b3a4ccf1be0584a98165833667201c96e8834 100644
--- a/arch/arm/plat-s3c24xx/pm-simtec.c
+++ b/arch/arm/plat-s3c24xx/pm-simtec.c
@@ -18,6 +18,7 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/init.h>
+#include <linux/sysdev.h>
 #include <linux/device.h>
 
 #include <asm/mach/arch.h>