diff --git a/lib/active_record/connection_adapters/odbc_adapter.rb b/lib/active_record/connection_adapters/odbc_adapter.rb
index 7d5d2372..4628804c 100644
--- a/lib/active_record/connection_adapters/odbc_adapter.rb
+++ b/lib/active_record/connection_adapters/odbc_adapter.rb
@@ -81,6 +81,7 @@ def initialize(connection, logger, config, database_metadata)
         super(connection, logger, config)
         @database_metadata = database_metadata
         @connection = connection
+        @raw_connection = connection
       end
 
       # Returns the human-readable name of the adapter.