diff --git a/gnomeos/ostree-install.sh b/gnomeos/ostree-install.sh
index cf709c79..ac6f2535 100755
--- a/gnomeos/ostree-install.sh
+++ b/gnomeos/ostree-install.sh
@@ -39,6 +39,9 @@ EOF
     exit 1
 fi
 
+ARCH=i686
+BRANCH_PREFIX="gnomeos-3.4-${ARCH}-"
+
 mkdir -p /ostree
 
 cd /ostree