diff --git a/src/schemas/ImmutableUtils.js b/src/schemas/ImmutableUtils.js
index e37ad07a..1cc84d9f 100644
--- a/src/schemas/ImmutableUtils.js
+++ b/src/schemas/ImmutableUtils.js
@@ -13,7 +13,8 @@
 export function isImmutable(object) {
   return !!(object && (
     (typeof object.hasOwnProperty === 'function' && object.hasOwnProperty('__ownerID')) || // Immutable.Map
-    (object._map && typeof object._map.hasOwnProperty === 'function' && object._map.hasOwnProperty('__ownerID')) // Immutable.Record
+    (object._map && typeof object._map.hasOwnProperty === 'function' &&
+      object._map.hasOwnProperty('__ownerID')) // Immutable.Record
   ));
 }