diff --git a/src/Picqer/Financials/Exact/Webhook/Authenticatable.php b/src/Picqer/Financials/Exact/Webhook/Authenticatable.php
index 1d43f3d6..9e514dbe 100755
--- a/src/Picqer/Financials/Exact/Webhook/Authenticatable.php
+++ b/src/Picqer/Financials/Exact/Webhook/Authenticatable.php
@@ -6,7 +6,7 @@
 
 trait Authenticatable
 {
-    public function authenticate(string $requestContent, string$webhookSecret): bool
+    public function authenticate(string $requestContent, string $webhookSecret): bool
     {
         $matches = [];
         $matched = preg_match('/^{"Content":(.*),"HashCode":"(.*)"}$/', $requestContent, $matches);