diff --git a/payload.md b/payload.md
index d4a0e7b..6f229f0 100644
--- a/payload.md
+++ b/payload.md
@@ -3,7 +3,7 @@
 TODO
 
 ## Format
-Fields are encoded in little endian.
+Fields are encoded in big endian.
 
 > Note: The length of the payload varies depending on the experiment being conducted