diff --git a/doc/reference/autoinstall-reference.rst b/doc/reference/autoinstall-reference.rst
index ca07c0d6b..59461f306 100644
--- a/doc/reference/autoinstall-reference.rst
+++ b/doc/reference/autoinstall-reference.rst
@@ -269,10 +269,10 @@ The default is:
       mirror-selection:
         primary:
           - country-mirror
-          - arches: [i386, amd64]
-            uri: "http://archive.ubuntu.com/ubuntu"
-          - arches: [s390x, arm64, armhf, powerpc, ppc64el, riscv64]
-            uri: "http://ports.ubuntu.com/ubuntu-ports"
+          - uri: "http://archive.ubuntu.com/ubuntu"
+            arches: [i386, amd64]
+          - uri: "http://ports.ubuntu.com/ubuntu-ports"
+            arches: [s390x, arm64, armhf, powerpc, ppc64el, riscv64]
       fallback: abort
       geoip: true