diff --git a/apple-developer-merchantid-domain-association.txt b/apple-developer-merchantid-domain-association
similarity index 100%
rename from apple-developer-merchantid-domain-association.txt
rename to apple-developer-merchantid-domain-association
diff --git a/build.sh b/build.sh
index 9f8848a..320bf8f 100755
--- a/build.sh
+++ b/build.sh
@@ -54,4 +54,4 @@ cp sitemap-index.xml dist/sitemap.xml
 
 # Install merchantid-domain-association for improved Paddle Apple Pay checkout
 mkdir dist/.well-known
-cp apple-developer-merchantid-domain-association.txt dist/.well-known/apple-developer-merchantid-domain-association.txt
+cp apple-developer-merchantid-domain-association dist/.well-known/apple-developer-merchantid-domain-association