diff --git a/swap/src/lib.rs b/swap/src/lib.rs
index 386af1ef..36f5d033 100644
--- a/swap/src/lib.rs
+++ b/swap/src/lib.rs
@@ -13,7 +13,7 @@ pub mod tor;
 pub const ONE_BTC: u64 = 100_000_000;
 
 const REFUND_TIMELOCK: u32 = 10; // Relative timelock, this is number of blocks. TODO: What should it be?
-const PUNISH_TIMELOCK: u32 = 20; // FIXME: What should this be?
+const PUNISH_TIMELOCK: u32 = 10; // FIXME: What should this be?
 
 pub type Never = std::convert::Infallible;