diff --git a/knowledge-base/moneropedia/paymentid.md b/knowledge-base/moneropedia/paymentid.md
index 76bc3596..a21ab6c2 100644
--- a/knowledge-base/moneropedia/paymentid.md
+++ b/knowledge-base/moneropedia/paymentid.md
@@ -2,7 +2,7 @@
 layout: moneropedia
 entry: "Payment ID"
 terms: ["payment-ID", "payment-IDs"]
-summary: "An optional flag that is added to identify transactions to merchants, consisting of 64 hexadecimal characters"
+summary: "an optional flag that is added to identify transactions to merchants, consisting of 64 hexadecimal characters"
 ---
 
 ### The Basics