diff --git a/lib/active_record_shards/model.rb b/lib/active_record_shards/model.rb
index <HASH>..<HASH> 100644
--- a/lib/active_record_shards/model.rb
+++ b/lib/active_record_shards/model.rb
@@ -9,7 +9,7 @@ module ActiveRecordShards
 
     def is_sharded?
       if self == ActiveRecord::Base
-        true
+        supports_sharding?
       elsif self == base_class
         @sharded != false
       else
AR::Base is only sharded if sharding is supported