diff --git a/src/Plugin.php b/src/Plugin.php
index 0591f2f9..c87f7630 100644
--- a/src/Plugin.php
+++ b/src/Plugin.php
@@ -267,6 +267,7 @@ private function saveInstalledPaths()
     {
         // Check if we found installed paths to set.
         if (count($this->installedPaths) !== 0) {
+            sort($this->installedPaths);
             $paths = implode(',', $this->installedPaths);
             $arguments = array('--config-set', self::PHPCS_CONFIG_KEY, $paths);
             $configMessage = sprintf(