diff --git a/lib/acts_as_tenant/configuration.rb b/lib/acts_as_tenant/configuration.rb
index e75ebcf..a9ea9e3 100644
--- a/lib/acts_as_tenant/configuration.rb
+++ b/lib/acts_as_tenant/configuration.rb
@@ -1,6 +1,6 @@
 module ActsAsTenant
   class Configuration
-    attr_writer :require_tenant, :pkey
+    attr_writer :require_tenant, :pkey, :global_records_identifier
 
     def require_tenant
       @require_tenant ||= false
@@ -10,6 +10,10 @@ def pkey
       @pkey ||= :id
     end
 
+    def global_records_identifier
+      @global_records_identifier ||= nil
+    end
+
     def job_scope
       @job_scope || ->(relation) { relation.all }
     end
diff --git a/lib/acts_as_tenant/model_extensions.rb b/lib/acts_as_tenant/model_extensions.rb
index 053b9b8..9c253fe 100644
--- a/lib/acts_as_tenant/model_extensions.rb
+++ b/lib/acts_as_tenant/model_extensions.rb
@@ -23,7 +23,7 @@ def acts_as_tenant(tenant = :account, scope = nil, **options)
 
           if ActsAsTenant.current_tenant
             keys = [ActsAsTenant.current_tenant.send(pkey)].compact
-            keys.push(nil) if options[:has_global_records]
+            keys.push(ActsAsTenant.global_records_identifier) if options[:has_global_records]
 
             if options[:through]
               query_criteria = {options[:through] => {fkey.to_sym => keys}}