diff --git a/modules/host-groups/apollo-2000.nix b/modules/host-groups/apollo-2000.nix
index 486c6ab..f241b2e 100644
--- a/modules/host-groups/apollo-2000.nix
+++ b/modules/host-groups/apollo-2000.nix
@@ -66,7 +66,7 @@
 
       serviceConfig = {
         Type = "simple";
-        ExecStartPre = ''${pkgs.sleep}/bin/sleep 30'';
+        ExecStartPre = ''${pkgs.coreutils}/bin/sleep 30'';
         ExecStart = "${pkgs.writeShellScript "hpe-silent-fans.sh" ''
           set -e