diff --git a/spa/plugins/audioconvert/channelmix.c b/spa/plugins/audioconvert/channelmix.c
index d9905df0a..de00bb1d2 100644
--- a/spa/plugins/audioconvert/channelmix.c
+++ b/spa/plugins/audioconvert/channelmix.c
@@ -649,6 +649,9 @@ static int apply_props(struct impl *this, const struct spa_pod *param)
 	if (param == NULL)
 		return 0;
 
+	if (this->props.disabled)
+		return 0;
+
 	SPA_POD_OBJECT_FOREACH(obj, prop) {
 		switch (prop->key) {
 		case SPA_PROP_volume:
@@ -731,6 +734,9 @@ static int apply_midi(struct impl *this, const struct spa_pod *value)
 	if (size < 3)
 		return -EINVAL;
 
+	if (this->props.disabled)
+		return 0;
+
 	if ((val[0] & 0xf0) != 0xb0 || val[1] != 7)
 		return 0;