diff --git a/hydra/l0dables.nix b/hydra/l0dables.nix
index ac7940692848673e14ecbc4ea355f71c1fac2a8e..7c118b1d56154d78e83bc7070a45b7ad02dfb701 100644
--- a/hydra/l0dables.nix
+++ b/hydra/l0dables.nix
@@ -18,7 +18,9 @@ let
       ${oldAttrs.installPhase}
 
       mkdir -p $out/nix-support
-      echo file binary-dist $out/apps/*.elf >> $out/nix-support/hydra-build-products
+      for f in $out/apps/*.elf ; do
+        echo file binary-dist $f >> $out/nix-support/hydra-build-products
+      done
     '';
   });
 in {