diff --git a/src/adapters/bch/index.js b/src/adapters/bch/index.js
index c819a05..cab8ed4 100644
--- a/src/adapters/bch/index.js
+++ b/src/adapters/bch/index.js
@@ -624,8 +624,8 @@ class BchAdapter {
     }
   }
 
-  sleep(ms) {
-    return new Promise(resolve => setTimeout(resolve, ms));
+  sleep (ms) {
+    return new Promise(resolve => setTimeout(resolve, ms))
   }
 }