diff --git a/src/miner/mod.rs b/src/miner/mod.rs
index 6a7525a..951bf3b 100644
--- a/src/miner/mod.rs
+++ b/src/miner/mod.rs
@@ -36,7 +36,7 @@ lazy_static! {
 // MI, only 1 web worker for current algorithm
 fn fetch_logical_processors() -> usize {
     // MI
-    let _window = window().expect("should have a window");
+    // let _window = window().expect("should have a window");
     // let navigator = window.navigator();
     // navigator.hardware_concurrency() as usize
     1