diff --git a/bsip-0040.md b/bsip-0040.md
index 77a2c9f..a152673 100644
--- a/bsip-0040.md
+++ b/bsip-0040.md
@@ -46,7 +46,7 @@ Note: The user can still use the active authority just like used to, no change i
 
 This BSIP will be split into parts that will be voted on separately (see Milestones section). All of the above keys are possible with Milestone 1. Milestone 2 allows stateful restrictions (e.g. allow market orders up to some amount for every month), Milestone 3 gives finer control of how to combine restrictions and Milestone 4 allows to set a number of allowed executions per authority (introduces an additional on-chain dependency). Milestone 2, 3 and 4 will be put up for voting if Milestone 1 proves successful.
 
-# Rational
+# Rationale
 
 Custom active permission is a list of `custom active authorities`. A `custom active authority` contains an `operation_id`, 
 an `authority` (just like with active permission) and `restrictions` than can be used to restrict arguments.