diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 55eea90ee993..92c06b1bb979 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -6,8 +6,8 @@
  */
 
 struct usbmix_dB_map {
-	u32 min;
-	u32 max;
+	int min;
+	int max;
 };
 
 struct usbmix_name_map {