diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 6e7ae2b..9965ecd 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -4,6 +4,7 @@
 
 #include <linux/hdreg.h>
 #include <linux/ide.h>
+#include <linux/slab.h>
 
 static const struct ide_ioctl_devset ide_ioctl_settings[] = {
 { HDIO_GET_32BIT,	 HDIO_SET_32BIT,	&ide_devset_io_32bit  },