7,7 @@ static kobj_method_t feeder_eq_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_eq, FEEDER_EQ, NULL);
+FEEDER_DECLARE(feeder_eq, FEEDER_EQ);
 
 static int32_t
 feed_eq_scan_preamp_arg(const char *s)
diff --git a/sys/dev/sound/pcm/feeder_format.c b/sys/dev/sound/pcm/feeder_format.c
index 21b54fcafcd7..d2c4d7618ab4 100644
--- a/sys/dev/sound/pcm/feeder_format.c
+++ b/sys/dev/sound/pcm/feeder_format.c
@@ -180,4 +180,4 @@ static kobj_method_t feeder_format_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_format, FEEDER_FORMAT, NULL);
+FEEDER_DECLARE(feeder_format, FEEDER_FORMAT);
diff --git a/sys/dev/sound/pcm/feeder_matrix.c b/sys/dev/sound/pcm/feeder_matrix.c
index 69c7e5962268..7319b10930de 100644
--- a/sys/dev/sound/pcm/feeder_matrix.c
+++ b/sys/dev/sound/pcm/feeder_matrix.c
@@ -405,7 +405,7 @@ static kobj_method_t feeder_matrix_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_matrix, FEEDER_MATRIX, NULL);
+FEEDER_DECLARE(feeder_matrix, FEEDER_MATRIX);
 
 /* External */
 int
diff --git a/sys/dev/sound/pcm/feeder_mixer.c b/sys/dev/sound/pcm/feeder_mixer.c
index 3c2a58ba145f..10de42ba727a 100644
--- a/sys/dev/sound/pcm/feeder_mixer.c
+++ b/sys/dev/sound/pcm/feeder_mixer.c
@@ -366,4 +366,4 @@ static kobj_method_t feeder_mixer_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_mixer, FEEDER_MIXER, NULL);
+FEEDER_DECLARE(feeder_mixer, FEEDER_MIXER);
diff --git a/sys/dev/sound/pcm/feeder_rate.c b/sys/dev/sound/pcm/feeder_rate.c
index 173a0c1fcd39..c2c232a97177 100644
--- a/sys/dev/sound/pcm/feeder_rate.c
+++ b/sys/dev/sound/pcm/feeder_rate.c
@@ -1714,4 +1714,4 @@ static kobj_method_t feeder_rate_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_rate, FEEDER_RATE, NULL);
+FEEDER_DECLARE(feeder_rate, FEEDER_RATE);
diff --git a/sys/dev/sound/pcm/feeder_volume.c b/sys/dev/sound/pcm/feeder_volume.c
index 942f1a273edf..a45003849034 100644
--- a/sys/dev/sound/pcm/feeder_volume.c
+++ b/sys/dev/sound/pcm/feeder_volume.c
@@ -314,7 +314,7 @@ static kobj_method_t feeder_volume_methods[] = {
 	KOBJMETHOD_END
 };
 
-FEEDER_DECLARE(feeder_volume, FEEDER_VOLUME, NULL);
+FEEDER_DECLARE(feeder_volume, FEEDER_VOLUME);
 
 /* Extern */