diff --git a/examples/unix/c11/z_get_attachment.c b/examples/unix/c11/z_get_attachment.c
index da158e7f9..ca549a9e1 100644
--- a/examples/unix/c11/z_get_attachment.c
+++ b/examples/unix/c11/z_get_attachment.c
@@ -46,7 +46,7 @@ typedef struct kv_pairs_rx_t {
 static z_condvar_t cond;
 static z_mutex_t mutex;
 
-size_t kv_pairs_length(kv_pairs_tx_t *kvp) {
+size_t kv_pairs_size(kv_pairs_tx_t *kvp) {
     size_t ret = 0;
     for (size_t i = 0; i < kvp->len; i++) {
         // Size fields
@@ -219,7 +219,7 @@ int main(int argc, char **argv) {
     kvs[0] = (kv_pair_t){.key = "test_key", .value = "test_value"};
     kv_pairs_tx_t ctx = (kv_pairs_tx_t){.data = kvs, .current_idx = 0, .len = 1};
     z_owned_bytes_t attachment;
-    zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&ctx, kv_pairs_length(&ctx));
+    zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&ctx, kv_pairs_size(&ctx));
     opts.attachment = z_move(attachment);
 
     z_owned_closure_reply_t callback;
diff --git a/examples/unix/c11/z_pub_attachment.c b/examples/unix/c11/z_pub_attachment.c
index 50bc1c106..4f7f30168 100644
--- a/examples/unix/c11/z_pub_attachment.c
+++ b/examples/unix/c11/z_pub_attachment.c
@@ -35,7 +35,8 @@ typedef struct kv_pairs_t {
 
 #if Z_FEATURE_PUBLICATION == 1
 
-size_t kv_pairs_length(kv_pairs_t *kvp) {
+// Return the total serialized size of the key value pairs
+size_t kv_pairs_size(kv_pairs_t *kvp) {
     size_t ret = 0;
     for (size_t i = 0; i < kvp->len; i++) {
         // Size fields
@@ -162,7 +163,7 @@ int main(int argc, char **argv) {
         sprintf(buf_ind, "%d", idx);
         kvs[1] = (kv_pair_t){.key = "index", .value = buf_ind};
         kv_pairs_t ctx = (kv_pairs_t){.data = kvs, .current_idx = 0, .len = 2};
-        zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&ctx, kv_pairs_length(&ctx));
+        zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&ctx, kv_pairs_size(&ctx));
         options.attachment = z_move(attachment);
 
         sprintf(buf, "[%4d] %s", idx, value);
diff --git a/examples/unix/c11/z_queryable_attachment.c b/examples/unix/c11/z_queryable_attachment.c
index d6b41fac2..6c6ecc1ef 100644
--- a/examples/unix/c11/z_queryable_attachment.c
+++ b/examples/unix/c11/z_queryable_attachment.c
@@ -47,7 +47,7 @@ const char *keyexpr = "demo/example/zenoh-pico-queryable";
 const char *value = "Queryable from Pico!";
 static int msg_nb = 0;
 
-size_t kv_pairs_length(kv_pairs_tx_t *kvp) {
+size_t kv_pairs_size(kv_pairs_tx_t *kvp) {
     size_t ret = 0;
     for (size_t i = 0; i < kvp->len; i++) {
         // Size fields
@@ -141,7 +141,7 @@ void query_handler(const z_loaned_query_t *query, void *ctx) {
     kvs[0] = (kv_pair_t){.key = "reply_key", .value = "reply_value"};
     kv_pairs_tx_t kv_ctx = (kv_pairs_tx_t){.data = kvs, .current_idx = 0, .len = 1};
     z_owned_bytes_t attachment;
-    zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&kv_ctx, kv_pairs_length(&kv_ctx));
+    zp_bytes_encode_from_iter(&attachment, create_attachment_iter, (void *)&kv_ctx, kv_pairs_size(&kv_ctx));
     options.attachment = z_move(attachment);
 
     z_query_reply(query, z_query_keyexpr(query), z_move(reply_payload), &options);