diff --git a/lib/dereference.js b/lib/dereference.js
index 529029a8..db84d7eb 100644
--- a/lib/dereference.js
+++ b/lib/dereference.js
@@ -72,7 +72,7 @@ async function crawl (
       );
       result.circular = dereferenced.circular;
       result.value = dereferenced.value;
-    } 
+    }
     else {
       for (let key of Object.keys(obj)) {
         let keyPath = Pointer.join(path, key);
@@ -95,7 +95,7 @@ async function crawl (
           if (obj[key] !== dereferenced.value) {
             obj[key] = dereferenced.value;
           }
-        } 
+        }
         else {
           if (parents.indexOf(value) === -1) {
             dereferenced = await crawl(
@@ -112,7 +112,7 @@ async function crawl (
             if (obj[key] !== dereferenced.value) {
               obj[key] = dereferenced.value;
             }
-          } 
+          }
           else {
             circular = foundCircularReference(keyPath, $refs, options);
           }