diff --git a/wp-includes/rest-api/class-wp-rest-request.php b/wp-includes/rest-api/class-wp-rest-request.php
index dee352c340..fdf13c46d1 100644
--- a/wp-includes/rest-api/class-wp-rest-request.php
+++ b/wp-includes/rest-api/class-wp-rest-request.php
@@ -847,7 +847,7 @@ class WP_REST_Request implements ArrayAccess {
 				$valid_check = call_user_func( $arg['validate_callback'], $param, $this, $key );
 
 				if ( false === $valid_check ) {
-					$invalid_params[ $key ] = __( 'Invalid param.' );
+					$invalid_params[ $key ] = __( 'Invalid parameter.' );
 				}
 
 				if ( is_wp_error( $valid_check ) ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 4d75129a59..6589acebea 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-RC1-35749';
+$wp_version = '4.4-RC1-35750';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.