diff --git a/underscore.js b/underscore.js
index d219bc206..f2c8c94b7 100644
--- a/underscore.js
+++ b/underscore.js
@@ -679,12 +679,12 @@
     if (a.length !== b.length) return false;
     // Objects with different constructors are not equal.
     if (a.constructor !== b.constructor) return false;
-    // Assume equality for cyclic structures. The algorithm for detecting cyclic structures is
-    // adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+    // Assume equality for cyclic structures. The algorithm for detecting cyclic
+    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
     var length = stack.length;
     while (length--) {
-      // Linear search. Performance is inversely proportional to the number of unique nested
-      // structures.
+      // Linear search. Performance is inversely proportional to the number of
+      // unique nested structures.
       if (stack[length] == a) return true;
     }
     // Add the first object to the stack of traversed objects.