diff --git a/tmd/areas/weights/README.md b/tmd/areas/weights/README.md
index ec029aa5..603e2ac1 100644
--- a/tmd/areas/weights/README.md
+++ b/tmd/areas/weights/README.md
@@ -1,3 +1,3 @@
 # areas / weights
 
-Contains sub-national area weights files.
+Contains code to examine sub-national area weights files.