diff --git a/mm2src/mm2_p2p/src/behaviours/atomicdex.rs b/mm2src/mm2_p2p/src/behaviours/atomicdex.rs
index b5b66af3d3..72b92698bb 100644
--- a/mm2src/mm2_p2p/src/behaviours/atomicdex.rs
+++ b/mm2src/mm2_p2p/src/behaviours/atomicdex.rs
@@ -57,6 +57,9 @@ const CHANNEL_BUF_SIZE: usize = 1024 * 8;
/// Used in time validation logic for each peer which runs immediately after the
/// `ConnectionEstablished` event.
+///
+/// Be careful when updating this value, we have some defaults (like for swaps)
+/// depending on this.
pub const MAX_TIME_GAP_FOR_CONNECTED_PEER: u64 = 20;
/// Used for storing peers in [`RECENTLY_DIALED_PEERS`].
@@ -248,7 +251,7 @@ async fn validate_peer_time(peer: PeerId, mut response_tx: Sender