diff --git a/lib/liquid/variable_lookup.rb b/lib/liquid/variable_lookup.rb
index 743d573f..e5d273de 100644
--- a/lib/liquid/variable_lookup.rb
+++ b/lib/liquid/variable_lookup.rb
@@ -177,9 +177,10 @@ module Liquid
 
         # If object is a hash- or array-like object we look for the
         # presence of the key and if its available we return it
-        if object.respond_to?(:[]) &&
-            ((object.respond_to?(:key?) && object.key?(key)) ||
-             (object.respond_to?(:fetch) && key.is_a?(Integer)))
+        if object.instance_of?(Hash) ? object.key?(key) :
+            (object.respond_to?(:[]) &&
+              ((object.respond_to?(:key?) && object.key?(key)) ||
+               (object.respond_to?(:fetch) && key.is_a?(Integer))))
 
           # if its a proc we will replace the entry with the proc
           object = context.lookup_and_evaluate(object, key)