diff --git a/bsip-0031.md b/bsip-0031.md
index 55a5b70..e4fe09a 100644
--- a/bsip-0031.md
+++ b/bsip-0031.md
@@ -28,7 +28,7 @@ This BSIP proposes a mechanism to improve this situation.
 
 Make the exchange system more user-friendly.
 
-# Rational
+# Rationale
 
 To attract more users, the system should be fair, should be well balanced.