diff --git a/manifests/repo/apt_postgresql_org.pp b/manifests/repo/apt_postgresql_org.pp
index c7f603f898..31b591a0f0 100644
--- a/manifests/repo/apt_postgresql_org.pp
+++ b/manifests/repo/apt_postgresql_org.pp
@@ -15,14 +15,15 @@
     priority   => 500,
   }
   -> apt::source { 'apt.postgresql.org':
-    location => $_baseurl,
-    release  => "${facts['os']['distro']['codename']}-pgdg",
-    repos    => 'main',
-    key      => {
+    location     => $_baseurl,
+    release      => "${facts['os']['distro']['codename']}-pgdg",
+    repos        => 'main',
+    architecture => $facts['os']['architecture'],
+    key          => {
       id     => 'B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8',
       source => 'https://www.postgresql.org/media/keys/ACCC4CF8.asc',
     },
-    include  => {
+    include      => {
       src => false,
     },
   }