diff --git a/nixos/modules/services/continuous-integration/buildkite-agent.nix b/nixos/modules/services/continuous-integration/buildkite-agent.nix
index b6d61f6c68b..9c06e1d43bb 100644
--- a/nixos/modules/services/continuous-integration/buildkite-agent.nix
+++ b/nixos/modules/services/continuous-integration/buildkite-agent.nix
@@ -33,8 +33,8 @@ in
       };
 
       runtimePackages = mkOption {
-        default = [ pkgs.nix ];
-        defaultText = "[ pkgs.nix ]";
+        default = [ pkgs.bash pkgs.nix ];
+        defaultText = "[ pkgs.bash pkgs.nix ]";
         description = "Add programs to the buildkite-agent environment";
         type = types.listOf types.package;
       };