diff --git a/validation/gravity-retaining-wall/details.md b/validation/gravity-retaining-wall/details.md
index a7532c3..786714e 100644
--- a/validation/gravity-retaining-wall/details.md
+++ b/validation/gravity-retaining-wall/details.md
@@ -77,7 +77,7 @@ We assumed the following construction sequence:
 1.	Initialisation
 2.	Build gravity wall
 3.	Backfill behind the wall
-Apply 10kPa load behind the wall
+4. Apply 10kPa load behind the wall
 
 4.	Build the new structure behind the wall
 5.	Apply the new 100kPa loading behind the wall