diff --git a/wp-admin/admin.php b/wp-admin/admin.php
index 2dd315daf9..88a4aa480d 100644
--- a/wp-admin/admin.php
+++ b/wp-admin/admin.php
@@ -221,8 +221,9 @@ if ( isset($plugin_page) ) {
 		 */
 		do_action( $page_hook );
 	} else {
-		if ( validate_file($plugin_page) )
-			wp_die(__('Invalid plugin page'));
+		if ( validate_file( $plugin_page ) ) {
+			wp_die( __( 'Invalid plugin page.' ) );
+		}
 
 		if ( !( file_exists(WP_PLUGIN_DIR . "/$plugin_page") && is_file(WP_PLUGIN_DIR . "/$plugin_page") ) && !( file_exists(WPMU_PLUGIN_DIR . "/$plugin_page") && is_file(WPMU_PLUGIN_DIR . "/$plugin_page") ) )
 			wp_die(sprintf(__('Cannot load %s.'), htmlentities($plugin_page)));
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1d77cec4d9..eb5a4d071c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-39940';
+$wp_version = '4.8-alpha-39941';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.