diff --git a/doc/contracts.md b/doc/contracts.md
index 5318b184..e1667f16 100644
--- a/doc/contracts.md
+++ b/doc/contracts.md
@@ -59,7 +59,7 @@ A transaction can be time-locked with a few simple modifications:
 * the message `M` to sign becomes the block height `h` at which the transaction
 becomes spendable appended to the fee (so `M = fee | h`)
 * the lock height `h` is included in the transaction kernel
-* a block with a kernel that includes a lock height lower than the current
+* a block with a kernel that includes a lock height greater than the current
 block height is rejected
 
 # Derived Contracts