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-rw-r--r--sound/usb/usbmixer.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 43d53a362494..5c0568375941 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -42,6 +42,7 @@
#include "usbaudio.h"
#include "usbmixer.h"
+#include "helper.h"
/*
*/