diff --git a/maintainers/scripts/find-tarballs.nix b/maintainers/scripts/find-tarballs.nix
index 00659459660..ad79af90901 100644
--- a/maintainers/scripts/find-tarballs.nix
+++ b/maintainers/scripts/find-tarballs.nix
@@ -14,12 +14,12 @@ let
     operator = const [ ];
   });
 
-  urls = map (drv: { url = head drv.urls; hash = drv.outputHash; type = drv.outputHashAlgo; }) fetchurlDependencies;
+  urls = map (drv: { url = head (drv.urls or [ drv.url ]); hash = drv.outputHash; type = drv.outputHashAlgo; }) fetchurlDependencies;
 
   fetchurlDependencies =
     filter
       (drv: drv.outputHash or "" != "" && drv.outputHashMode or "flat" == "flat"
-          && drv.postFetch or "" == "" && drv ? urls)
+          && drv.postFetch or "" == "" && (drv ? url || drv ? urls))
       dependencies;
 
   dependencies = map (x: x.value) (genericClosure {