diff --git a/actix-server/src/accept.rs b/actix-server/src/accept.rs
index 771245fb..5b152fb2 100644
--- a/actix-server/src/accept.rs
+++ b/actix-server/src/accept.rs
@@ -116,12 +116,11 @@ impl Availability {
             panic!("Max WorkerHandle count is 512")
         };
 
+        let off = 1 << idx as u128;
         if avail {
-            self.0[offset] |= 1 << idx as u128;
+            self.0[offset] |= off;
         } else {
-            let shift = 1 << idx as u128;
-
-            self.0[offset] &= ~shift
+            self.0[offset] &= !off
         }
     }