diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1ebd5ba4..e2a8cb067 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
     * Add more controls over HTML5 video attributes (autoplay, poster, loop controls) [#1442](https://github.com/getgrav/grav/pull/1442)
 1. [](#bugfix)
     * Fix to force route/redirect matching from the start of the route by default [#1446](https://github.com/getgrav/grav/issues/1446)
+    * Edit check for valid slug [#1459](https://github.com/getgrav/grav/issues/1459)
 
 # v1.2.4
 ## 04/24/2017
diff --git a/system/src/Grav/Common/Page/Page.php b/system/src/Grav/Common/Page/Page.php
index 41e177cf0..c6cf85e77 100644
--- a/system/src/Grav/Common/Page/Page.php
+++ b/system/src/Grav/Common/Page/Page.php
@@ -1497,7 +1497,7 @@ class Page
     {
         if ($var !== null && $var !== "") {
             $this->slug = $var;
-            if (!preg_match('/^[a-z0-9][-a-z0-9]*$/', $this->slug)) {
+            if (!preg_match('/^[a-zA-Zа-яA-Я0-9][a-zA-Zа-яA-Я0-9_\-]*$/', $this->slug)) {
                 Grav::instance()['log']->notice("Invalid slug set in YAML frontmatter: " . $this->rawRoute() . " => " . $this->slug);
             }
         }