diff --git a/alsactl/Makefile.am b/alsactl/Makefile.am
index aaaf74e..e9ab2eb 100644
--- a/alsactl/Makefile.am
+++ b/alsactl/Makefile.am
@@ -7,6 +7,8 @@ man_MANS += alsactl_init.7
 endif
 EXTRA_DIST=alsactl.1 alsactl_init.xml
 
+AM_CFLAGS = -D_GNU_SOURCE
+
 alsactl_SOURCES=alsactl.c state.c lock.c utils.c init_parse.c daemon.c \
                 monitor.c
 
diff --git a/alsactl/alsactl.c b/alsactl/alsactl.c
index 94cae23..dfb1db7 100644
--- a/alsactl/alsactl.c
+++ b/alsactl/alsactl.c
@@ -161,7 +161,7 @@ static void do_nice(int use_nice, int sched_idle)
 	if (sched_idle) {
 		if (sched_getparam(0, &sched_param) >= 0) {
 			sched_param.sched_priority = 0;
-			if (!sched_setscheduler(0, SCHED_RR, &sched_param))
+			if (!sched_setscheduler(0, SCHED_IDLE, &sched_param))
 				error("sched_setparam failed: %s", strerror(errno));
 		} else {
 			error("sched_getparam failed: %s", strerror(errno));