diff --git a/app/templates/views/pricing/how-to-pay.html b/app/templates/views/pricing/how-to-pay.html
index d74e7f4cb..803a390aa 100644
--- a/app/templates/views/pricing/how-to-pay.html
+++ b/app/templates/views/pricing/how-to-pay.html
@@ -43,7 +43,7 @@
     </p>
 
     <p>
-      Each organisation should raise a single PO to cover the cost of all its services.
+      Each organisation should raise a single <abbr title="purchase order">PO</abbr> to cover the cost of all its services.
     </p>
 
     <p>