diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index dfa5853..95637a4 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -108,7 +108,7 @@
 };
 
 #ifdef CONFIG_NET
-unsigned int acpi_event_seqnum;
+static unsigned int acpi_event_seqnum;
 struct acpi_genl_event {
 	acpi_device_class device_class;
 	char bus_id[15];