diff --git a/.travis.yml b/.travis.yml
index c761997..9088111 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ php:
   - 7.1
   - 7.0
 env:
+  - M2_VERSION=2.2.4
   - M2_VERSION=2.2.3
   - M2_VERSION=2.2.2
   - M2_VERSION=2.2.1
diff --git a/Helper/Data.php b/Helper/Data.php
index 29f87cb..6c30440 100644
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -142,11 +142,11 @@ public function getCdnBaseUrl($store = null, $secure = null)
      */
     public function getJsScriptPath($store = null)
     {
-        return trim($this->scopeConfig->getValue(
+        return ltrim(trim($this->scopeConfig->getValue(
             self::XML_PATH_JS_SCRIPT_PATH,
             \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
             $store
-        ), ' /') ?: 'piwik.js';
+        )), '/') ?: 'piwik.js';
     }
 
     /**
@@ -170,11 +170,11 @@ public function getJsScriptUrl($store = null, $secure = null)
      */
     public function getPhpScriptPath($store = null)
     {
-        return trim($this->scopeConfig->getValue(
+        return ltrim(trim($this->scopeConfig->getValue(
             self::XML_PATH_PHP_SCRIPT_PATH,
             \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
             $store
-        ), ' /') ?: 'piwik.php';
+        )), '/') ?: 'piwik.php';
     }
 
     /**