diff --git a/src/boot/ostree-prepare-root.service b/src/boot/ostree-prepare-root.service
index 510d866a4c..4c2b6babe6 100644
--- a/src/boot/ostree-prepare-root.service
+++ b/src/boot/ostree-prepare-root.service
@@ -19,11 +19,13 @@ Documentation=man:ostree(1)
 DefaultDependencies=no
 ConditionKernelCommandLine=ostree
 ConditionPathExists=/etc/initrd-release
-OnFailure=emergency.target
 After=sysroot.mount
 Requires=sysroot.mount
 Before=initrd-root-fs.target
 
+OnFailure=emergency.target
+OnFailureJobMode=isolate
+
 [Service]
 Type=oneshot
 ExecStart=/usr/lib/ostree/ostree-prepare-root /sysroot