diff --git a/underscore.js b/underscore.js
index 6ade0c57d..6be62ff3b 100644
--- a/underscore.js
+++ b/underscore.js
@@ -194,7 +194,7 @@
     if (obj == null) return result;
     if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
     each(obj, function(value, index, list) {
-      if (result = result||iterator.call(context, value, index, list)) return breaker;
+      if (result || (result = iterator.call(context, value, index, list))) return breaker;
     });
     return !!result;
   };