diff --git a/src/Extra/Processor/ServerProcessor.php b/src/Extra/Processor/ServerProcessor.php
index da6d708..56b7cec 100644
--- a/src/Extra/Processor/ServerProcessor.php
+++ b/src/Extra/Processor/ServerProcessor.php
@@ -41,7 +41,7 @@ public function process(array $data): array
                 continue;
             }
 
-            $return[$serverKey] = $this->replace($this->replacementStrategy, $serverValue);
+            $return[$serverKey] = $this->replace($this->replacementStrategy, (string) $serverValue);
         }
 
         return $return;