diff --git a/bip-0065.mediawiki b/bip-0065.mediawiki
index b48fa759..a960e543 100644
--- a/bip-0065.mediawiki
+++ b/bip-0065.mediawiki
@@ -16,11 +16,17 @@ some point in the future.
 
 ==Summary==
 
-CHECKLOCKTIMEVERIFY redefines the existing NOP2 opcode. When executed it
-compares the top item on the stack to the nLockTime field of the transaction
-containing the scriptSig. If that top stack item is greater than the transaction's
-nLockTime field the script fails immediately, otherwise script evaluation continues
-as though a NOP was executed.
+CHECKLOCKTIMEVERIFY redefines the existing NOP2 opcode. When executed, if
+any of the following conditions are true, the script interpreter will terminate
+with an error:
+
+* the stake is empty; or
+* the top item on the stack is less than 0; or
+* the lock-time type (height vs. timestamp) of the top stake item and the nLockTime field are not the same; or
+* the top stack item is greater than the transaction's nLockTime field; or
+* the nLockTime feature is disabled by setting the nSequence field of the txin to 0xffffffff;
+
+Otherwise, script execution will continue as if a NOP had been executed.
 
 The nLockTime field in a transaction prevents the transaction from being mined
 until either a certain block height, or block time, has been reached. By