diff --git a/nixos/modules/services/security/tor.nix b/nixos/modules/services/security/tor.nix
index 0c6002c396b1..1c2cc65862e6 100644
--- a/nixos/modules/services/security/tor.nix
+++ b/nixos/modules/services/security/tor.nix
@@ -456,6 +456,8 @@ in
 
       package = lib.mkPackageOption pkgs "tor" { };
 
+      obfs4Package = lib.mkPackageOption pkgs "obfs4" { };
+
       enableGeoIP =
         lib.mkEnableOption ''
           use of GeoIP databases.
@@ -1253,7 +1255,7 @@ in
               BridgeRelay = true;
               ExtORPort.port = lib.mkDefault "auto";
               ServerTransportPlugin.transports = lib.mkDefault [ "obfs4" ];
-              ServerTransportPlugin.exec = lib.mkDefault "${lib.getExe pkgs.obfs4} managed";
+              ServerTransportPlugin.exec = lib.mkDefault "${lib.getExe cfg.obfs4Package} managed";
             }
         // lib.optionalAttrs (cfg.relay.role == "private-bridge") {
           ExtraInfoStatistics = false;
@@ -1326,7 +1328,7 @@ in
     systemd.services.tor = {
       description = "Tor Daemon";
       documentation = [ "man:tor(8)" ];
-      path = [ pkgs.tor ];
+      path = [ cfg.package ];
 
       wantedBy = [ "multi-user.target" ];
       after = [ "network.target" ];