diff --git a/include/zenoh-pico/net/sample.h b/include/zenoh-pico/net/sample.h
index 969e91215..0817d9d1e 100644
--- a/include/zenoh-pico/net/sample.h
+++ b/include/zenoh-pico/net/sample.h
@@ -56,7 +56,7 @@ void _z_sample_free(_z_sample_t **sample);
 void _z_sample_copy(_z_sample_t *dst, const _z_sample_t *src);
 _z_sample_t _z_sample_duplicate(const _z_sample_t *src);
 
-_z_sample_t _z_sample_create(const _z_keyexpr_t *key, const _z_bytes_t, _z_timestamp_t timestamp,
+_z_sample_t _z_sample_create(const _z_keyexpr_t *key, const _z_bytes_t payload, _z_timestamp_t timestamp,
                              const _z_encoding_t encoding, const z_sample_kind_t kind, const _z_qos_t qos,
                              const _z_bytes_t attachment);
 
diff --git a/src/net/sample.c b/src/net/sample.c
index 9651075a2..14196a668 100644
--- a/src/net/sample.c
+++ b/src/net/sample.c
@@ -92,7 +92,7 @@ _z_sample_t _z_sample_create(const _z_keyexpr_t *key, const _z_bytes_t payload,
     return s;
 }
 #else
-_z_sample_t _z_sample_create(const _z_keyexpr_t *key, const _z_bytes payload, const _z_timestamp_t timestamp,
+_z_sample_t _z_sample_create(const _z_keyexpr_t *key, const _z_bytes_t payload, const _z_timestamp_t timestamp,
                              const _z_encoding_t encoding, const z_sample_kind_t kind, const _z_qos_t qos,
                              const _z_bytes_t attachment) {
     _ZP_UNUSED(key);