diff --git a/src/atomic-xr/runtime.nu b/src/atomic-xr/runtime.nu
index 6f062d8..8408fcc 100644
--- a/src/atomic-xr/runtime.nu
+++ b/src/atomic-xr/runtime.nu
@@ -80,9 +80,7 @@ def ensure-installed [
     }
 
     if ($missing_packages | is-not-empty) {
-        if (sys host).name == "Fedora Linux" {
-            pkexec dnf install ...$missing_packages
-        } else {
+        if (which dnf | length) == 0 {
             rpm-ostree install ...$missing_packages
 
             job spawn {
@@ -92,6 +90,8 @@ def ensure-installed [
                 }
             }
             null
+        } else {
+            pkexec dnf install ...$missing_packages
         }
     }
 }