diff --git a/modules/system/boot/systemd-unit-options.nix b/modules/system/boot/systemd-unit-options.nix
index 127ab7be3b9..46f2a705df8 100644
--- a/modules/system/boot/systemd-unit-options.nix
+++ b/modules/system/boot/systemd-unit-options.nix
@@ -47,6 +47,15 @@ rec {
       '';
     };
 
+    bindsTo = mkOption {
+      default = [];
+      types = types.listOf types.string;
+      description = ''
+        Like ‘requires’, but in addition, if the specified units
+        unexpectedly disappear, this unit will be stopped as well.
+      '';
+    };
+
     partOf = mkOption {
       default = [];
       types = types.listOf types.string;
diff --git a/modules/system/boot/systemd.nix b/modules/system/boot/systemd.nix
index 6603d6126b4..268e81b1091 100644
--- a/modules/system/boot/systemd.nix
+++ b/modules/system/boot/systemd.nix
@@ -174,6 +174,7 @@ let
           Wants = concatStringsSep " " config.wants;
           After = concatStringsSep " " config.after;
           Before = concatStringsSep " " config.before;
+          BindsTo = concatStringsSep " " config.bindsTo;
           PartOf = concatStringsSep " " config.partOf;
         } // optionalAttrs (config.description != "") {
           Description = config.description;