diff --git a/subsys/bluetooth/audio/shell/bap.c b/subsys/bluetooth/audio/shell/bap.c
index db5d76888ff..49cca9941c5 100644
--- a/subsys/bluetooth/audio/shell/bap.c
+++ b/subsys/bluetooth/audio/shell/bap.c
@@ -3740,6 +3740,8 @@ ssize_t audio_pa_data_add(struct bt_data *data_array,
 		NET_BUF_SIMPLE_DEFINE_STATIC(base_buf, UINT8_MAX);
 		int err;
 
+		net_buf_simple_reset(&base_buf);
+
 		err = bt_bap_broadcast_source_get_base(default_source.bap_source, &base_buf);
 		if (err != 0) {
 			printk("Unable to get BASE: %d\n", err);
diff --git a/subsys/bluetooth/audio/shell/cap_initiator.c b/subsys/bluetooth/audio/shell/cap_initiator.c
index 6343e973178..813bff1a041 100644
--- a/subsys/bluetooth/audio/shell/cap_initiator.c
+++ b/subsys/bluetooth/audio/shell/cap_initiator.c
@@ -1459,6 +1459,8 @@ ssize_t cap_initiator_pa_data_add(struct bt_data *data_array, const size_t data_
 		NET_BUF_SIMPLE_DEFINE_STATIC(base_buf, UINT8_MAX);
 		int err;
 
+		net_buf_simple_reset(&base_buf);
+
 		err = bt_cap_initiator_broadcast_get_base(default_source.cap_source, &base_buf);
 		if (err != 0) {
 			printk("Unable to get BASE: %d\n", err);
diff --git a/subsys/bluetooth/audio/shell/pbp.c b/subsys/bluetooth/audio/shell/pbp.c
index 9519fd19274..1eb3e630660 100644
--- a/subsys/bluetooth/audio/shell/pbp.c
+++ b/subsys/bluetooth/audio/shell/pbp.c
@@ -48,6 +48,8 @@ size_t pbp_ad_data_add(struct bt_data data[], size_t data_size)
 {
 	int err;
 
+	net_buf_simple_reset(&pbp_ad_buf);
+
 	err = bt_pbp_get_announcement(pba_metadata,
 				      ARRAY_SIZE(pba_metadata),
 				      pbp_features,