diff --git a/sound/ac97_bus.c b/sound/ac97_bus.c
index 7ea274c55900..1484fc178fa4 100644
--- a/sound/ac97_bus.c
+++ b/sound/ac97_bus.c
@@ -95,4 +95,5 @@ module_exit(ac97_bus_exit);
 
 EXPORT_SYMBOL(ac97_bus_type);
 
+MODULE_DESCRIPTION("Legacy AC97 bus interface");
 MODULE_LICENSE("GPL");