diff --git a/src/wp-includes/wp-db.php b/src/wp-includes/wp-db.php
index cd5c0173b2..2f8dbcf969 100644
--- a/src/wp-includes/wp-db.php
+++ b/src/wp-includes/wp-db.php
@@ -1162,9 +1162,9 @@ class wpdb {
 		$class = get_class( $this );
 		if ( function_exists( '__' ) ) {
 			/* translators: %s: database access abstraction class, usually wpdb or a class extending wpdb */
-			_doing_it_wrong( $class, sprintf( __( '%s must set a database connection for use with escaping.' ), $class ), E_USER_NOTICE );
+			_doing_it_wrong( $class, sprintf( __( '%s must set a database connection for use with escaping.' ), $class ), '3.6.0' );
 		} else {
-			_doing_it_wrong( $class, sprintf( '%s must set a database connection for use with escaping.', $class ), E_USER_NOTICE );
+			_doing_it_wrong( $class, sprintf( '%s must set a database connection for use with escaping.', $class ), '3.6.0' );
 		}
 		return addslashes( $string );
 	}