diff --git a/src/Parse.php b/src/Parse.php
index <HASH>..<HASH> 100644
--- a/src/Parse.php
+++ b/src/Parse.php
@@ -45,6 +45,8 @@ class Parse
 
     public function validate(): self
     {
+        $signature = '';
+
         if (!$this->validate->structure($this->jwt->getToken())) {
             $this->error('The JSON web token has an invalid structure.');
         }
@@ -55,6 +57,7 @@ class Parse
                 $this->encode->decode($this->getPayload()),
                 $this->jwt->getSecret()
             );
+
         } catch (\Throwable $e) {
             $this->error('The JSON web token is invalid [' . $this->jwt->getToken() . '].');
         }
Minor amend to set signature variable in Parse class validate method. Issue raised by phpstan.