diff --git a/lib/contain.js b/lib/contain.js
index 63ac4183..9afc464e 100755
--- a/lib/contain.js
+++ b/lib/contain.js
@@ -164,7 +164,6 @@ internals.object = function (ref, values, options) {
     // Keys list
 
     if (Array.isArray(values)) {
-        Assert(options.deep === undefined, 'Cannot use option once with object keys list');
         return internals.array(keys, values, options);
     }