diff --git a/libsignon-glib/PKGBUILD b/libsignon-glib/PKGBUILD
index dc6f174a2a..54848825f3 100644
--- a/libsignon-glib/PKGBUILD
+++ b/libsignon-glib/PKGBUILD
@@ -7,7 +7,7 @@ pkgname=libsignon-glib
 pkgver=2.1
 pkgrel=5
 pkgdesc='GLib-based client library for applications handling account authentication through the Online Accounts Single Sign-On service'
-arch=(x86_64 powerpc64le powerpc riscv64)
+arch=(x86_64 powerpc64le powerpc64 powerpc riscv64)
 url='https://gitlab.com/accounts-sso/libsignon-glib'
 license=(LGPL2.1)
 depends=(signond)