diff --git a/pkgs/proxmox-acme/default.nix b/pkgs/proxmox-acme/default.nix
index f36297fb..5ab63c84 100644
--- a/pkgs/proxmox-acme/default.nix
+++ b/pkgs/proxmox-acme/default.nix
@@ -5,7 +5,8 @@
   perl538,
   acme-sh,
   bash,
-  curl,  
+  curl,
+  bind,
 }:
 
 let
@@ -48,6 +49,8 @@ perl538.pkgs.toPerlModule (
 
     postFixup = ''
       find $out -type f | xargs sed -i -e "s|/usr/share/proxmox-acme|$out/share/proxmox-acme|"
+      substituteInPlace $out/share/proxmox-acme/dnsapi/dns_nsupdate.sh \
+        --replace-fail "    nsupdate" "    ${lib.getExe' bind.dnsutils "nsupdate"}"
     '';
 
     passthru.updateScript = [