diff --git a/CHANGELOG-v3.md b/CHANGELOG-v3.md
index b0c57df5bdd..d4abefb5fe4 100644
--- a/CHANGELOG-v3.md
+++ b/CHANGELOG-v3.md
@@ -4,6 +4,7 @@
 
 ### Fixed
 - Fixed a caching bug where the Fields service could still think a field existed after it had been deleted. ([#2985](https://github.com/craftcms/cms/issues/2985))
+- Fixed a PHP error that could occur when saving entries with a URI format that contained certain Twig filters. ([#2995](https://github.com/craftcms/cms/issues/2995))
 
 ## 3.0.11 - 2018-06-12
 
diff --git a/src/helpers/ElementHelper.php b/src/helpers/ElementHelper.php
index 93eb48520bd..99235808ff5 100644
--- a/src/helpers/ElementHelper.php
+++ b/src/helpers/ElementHelper.php
@@ -186,10 +186,7 @@ private static function _isUniqueUri(string $testUri, ElementInterface $element)
      */
     public static function doesUriFormatHaveSlugTag(string $uriFormat): bool
     {
-        $element = (object)['slug' => StringHelper::randomString()];
-        $uri = Craft::$app->getView()->renderObjectTemplate($uriFormat, $element);
-
-        return StringHelper::contains($uri, $element->slug);
+        return (bool)preg_match('/\bslug\b/', $uriFormat);
     }
 
     /**