diff --git a/packaging/linux/arch/PKGBUILD.bin.in b/packaging/linux/arch/PKGBUILD.bin.in
index ee52f75b08a4..98d90e9f1ce8 100644
--- a/packaging/linux/arch/PKGBUILD.bin.in
+++ b/packaging/linux/arch/PKGBUILD.bin.in
@@ -13,6 +13,7 @@ src_prefix=@@SRC_PREFIX@@
 deb_pkgver="${pkgver/_/-}"
 deb_pkgver="${deb_pkgver/+/.}"
 pkgrel=1
+arch=('x86_64')
 depends=(fuse libxss gtk3 lsof) # don't change this without changing the SRCINFO template too
                                 # also make sure to change the keybase-git PKGBUILD
 provides=(keybase keybase-gui kbfs)