Index: uspace/srv/audio/hound/audio_device.c
===================================================================
--- uspace/srv/audio/hound/audio_device.c	(revision 2c7fdaa52e822972ed823b3dc82058faf31a152b)
+++ uspace/srv/audio/hound/audio_device.c	(revision 07c913b7957f3c0dc58289db4a7542e11eb4ffd4)
@@ -279,5 +279,5 @@
 			getuptime(&time2);
 			log_verbose("Time to mix sources: %li\n",
-			    tv_sub(&time2, &time1));
+			    tv_sub_diff(&time2, &time1));
 			break;
 		}