diff --git a/zynq.nix b/zynq.nix
index 110e3f2..37d453c 100644
--- a/zynq.nix
+++ b/zynq.nix
@@ -2,4 +2,7 @@
   pkgs ? import <nixpkgs> {},
   artiq-zynq ? import <artiq-zynq> { mozillaOverlay = import <mozillaOverlay>; },
 }:
-builtins.mapAttrs (key: value: pkgs.lib.hydraJob value) artiq-zynq
+builtins.mapAttrs (key: value: pkgs.lib.hydraJob value) (
+  pkgs.lib.filterAttrs (key: value: builtins.substring 0 6 key == "zc706-")
+    artiq-zynq
+)