diff --git a/include/zenoh-pico/net/reply.h b/include/zenoh-pico/net/reply.h
index 3a47c9199..23aa1bce0 100644
--- a/include/zenoh-pico/net/reply.h
+++ b/include/zenoh-pico/net/reply.h
@@ -58,7 +58,9 @@ typedef struct _z_reply_data_t {
 } _z_reply_data_t;
 
 // Warning: None of the sub-types require a non-0 initialization. Add a init function if it changes.
-static inline _z_reply_data_t _z_reply_data_null(void) { return (_z_reply_data_t){0}; }
+static inline _z_reply_data_t _z_reply_data_init(void) {
+    return (_z_reply_data_t){.replier_id = {.id = {0}}, ._result.sample = _z_sample_null(), ._tag = _Z_REPLY_TAG_NONE};
+}
 void _z_reply_data_clear(_z_reply_data_t *rd);
 z_result_t _z_reply_data_copy(_z_reply_data_t *dst, const _z_reply_data_t *src);
 
diff --git a/src/net/reply.c b/src/net/reply.c
index 0efd92823..a331ae6cf 100644
--- a/src/net/reply.c
+++ b/src/net/reply.c
@@ -39,13 +39,13 @@ void _z_reply_data_free(_z_reply_data_t **reply_data) {
 }
 
 z_result_t _z_reply_data_copy(_z_reply_data_t *dst, const _z_reply_data_t *src) {
-    *dst = _z_reply_data_null();
-    dst->_tag = src->_tag;
+    *dst = _z_reply_data_init();
     if (src->_tag == _Z_REPLY_TAG_DATA) {
         _Z_RETURN_IF_ERR(_z_sample_copy(&dst->_result.sample, &src->_result.sample));
     } else if (src->_tag == _Z_REPLY_TAG_ERROR) {
         _Z_RETURN_IF_ERR(_z_value_copy(&dst->_result.error, &src->_result.error));
     }
+    dst->_tag = src->_tag;
     dst->replier_id = src->replier_id;
     return _Z_RES_OK;
 }