diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 205af8d..22436f7 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -125,3 +125,5 @@
 
 module_init(ioapic_init);
 module_exit(ioapic_exit);
+
+MODULE_LICENSE("GPL");