diff --git a/include/zenoh-pico/api/macros.h b/include/zenoh-pico/api/macros.h
index d429a32da..9d445c48a 100644
--- a/include/zenoh-pico/api/macros.h
+++ b/include/zenoh-pico/api/macros.h
@@ -303,6 +303,7 @@
                   z_owned_reply_t : z_reply_clone,                     \
                   z_owned_hello_t : z_hello_clone,                     \
                   z_owned_string_t : z_string_clone,                   \
+                  z_owned_slice_t : z_slice_clone,                     \
                   z_owned_string_array_t : z_string_array_clone,       \
                   z_owned_config_t : z_config_clone                    \
             )(&x, y)