diff --git a/include/zenoh_commons.h b/include/zenoh_commons.h
index 95d971840..b8624bc9f 100644
--- a/include/zenoh_commons.h
+++ b/include/zenoh_commons.h
@@ -457,6 +457,7 @@ typedef struct ALIGN(8) z_owned_reply_t {
  *   - `call` will never be called once `drop` has started.
  *   - `drop` will only be called **once**, and **after every** `call` has ended.
  *   - The two previous guarantees imply that `call` and `drop` are never called concurrently.
+ * tags{c.zc_reply_closure_t, api.get.callback}
  */
 typedef struct z_owned_closure_reply_t {
   void *context;
diff --git a/src/closures/reply_closure.rs b/src/closures/reply_closure.rs
index 1aa8a9b44..5052bd0b9 100644
--- a/src/closures/reply_closure.rs
+++ b/src/closures/reply_closure.rs
@@ -15,6 +15,7 @@ use libc::c_void;
 ///   - `drop` will only be called **once**, and **after every** `call` has ended.
 ///   - The two previous guarantees imply that `call` and `drop` are never called concurrently.
 #[repr(C)]
+/// tags{c.zc_reply_closure_t, api.get.callback}
 pub struct z_owned_closure_reply_t {
     context: *mut c_void,
     call: Option<extern "C" fn(&mut z_owned_reply_t, *mut c_void)>,