diff --git a/lib/modules/partition/disks.nix b/lib/modules/partition/disks.nix
index 9e761b4d..3e651b78 100644
--- a/lib/modules/partition/disks.nix
+++ b/lib/modules/partition/disks.nix
@@ -346,6 +346,7 @@
                   (builtins.filter (_: _.useSwap) partitions));
             in lib.strings.concatLines ([
                 "#!/bin/bash"
+                "set -o errexit"
               ] ++
               (builtins.map (_: _.deviceScript) disks) ++
               lib.optionals ((builtins.length disks) > 0) [