diff --git a/drivers/net/3c505.c b/drivers/net/3c505.c
index 458cb9c..702bfb2 100644
--- a/drivers/net/3c505.c
+++ b/drivers/net/3c505.c
@@ -1670,7 +1670,7 @@
 	return 0;
 }
 
-void cleanup_module(void)
+void __exit cleanup_module(void)
 {
 	int this_dev;