diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index cbd36cf59a0f2e2af74ddc9255f64380299a6666..6206aaac6b08e7ac3939f54c34c1a596eabfb482 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -299,7 +299,7 @@ void sysdev_unregister(struct sys_device *sysdev)
  *	and the class driver.
  *
  *	Note: The list is iterated in reverse order, so that we shut down
- *	child devices before we shut down thier parents. The list ordering
+ *	child devices before we shut down their parents. The list ordering
  *	is guaranteed by virtue of the fact that child devices are registered
  *	after their parents.
  */