diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index fe6ba47d699f863b23027f28bed07155fad36ea5..838b0434b0a36a1c5aa3f776a3cdf5052638331c 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -271,12 +271,10 @@ def remove_connection(klass)
       end
 
       def retrieve_connection_pool(klass)
-        loop do
-          pool = @connection_pools[klass.name]
-          return pool if pool
-          return nil if ActiveRecord::Base == klass
-          klass = klass.superclass
-        end
+        pool = @connection_pools[klass.name]
+        return pool if pool
+        return nil if ActiveRecord::Base == klass
+        retrieve_connection_pool klass.superclass
       end
     end
   end