diff --git a/CategoryTreeFunctions.php b/CategoryTreeFunctions.php
index a7108392..6985b65c 100644
--- a/CategoryTreeFunctions.php
+++ b/CategoryTreeFunctions.php
@@ -650,7 +650,7 @@ class CategoryTree {
 			. $label . Xml::closeElement( 'a' );
 
 		if ( $count !== false && $this->getOption( 'showcount' ) ) {
-			$s .= CategoryTree::createCountString( RequestContext::getMain(), $cat, $count );
+			$s .= self::createCountString( RequestContext::getMain(), $cat, $count );
 		}
 
 		$s .= Xml::closeElement( 'div' );
diff --git a/composer.json b/composer.json
index 4f558595..bf202bff 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "0.9.2",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
-		"mediawiki/mediawiki-codesniffer": "0.10.0"
+		"mediawiki/mediawiki-codesniffer": "0.10.1"
 	},
 	"scripts": {
 		"fix": "phpcbf",