diff --git a/tests/lib.nix b/tests/lib.nix
index 6d787ed..95f267e 100644
--- a/tests/lib.nix
+++ b/tests/lib.nix
@@ -60,6 +60,9 @@
           efiSupport = efi;
           efiInstallAsRemovable = efi;
         };
+        environment.systemPackages = [
+          pkgs.jq
+        ];
       };
       installedTopLevel = (eval-config {
         modules = [ installed-system ];
diff --git a/tests/swap.nix b/tests/swap.nix
index fa090f8..d3268dc 100644
--- a/tests/swap.nix
+++ b/tests/swap.nix
@@ -8,7 +8,7 @@ makeDiskoTest {
     machine.succeed("swapon --show >&2");
     machine.succeed("""
       lsblk --json |
-        ${pkgs.jq}/bin/jq -e '.blockdevices[] |
+        jq -e '.blockdevices[] |
           select(.name == "vda") |
           .children[] |
           select(.name == "vda3") |