diff --git a/src/Controller/Teamer/Disposition/InvoicePdfController.php b/src/Controller/Teamer/Disposition/InvoicePdfController.php
index d78d36f..b66dbab 100644
--- a/src/Controller/Teamer/Disposition/InvoicePdfController.php
+++ b/src/Controller/Teamer/Disposition/InvoicePdfController.php
@@ -29,11 +29,12 @@ class InvoicePdfController extends AbstractController
 
         $slugger = new AsciiSlugger('de');
 
-        $teamer = $slugger->slug($disposition->getTeamer());
+        $teamer = $disposition->getTeamer();
+        $teamerPart = $slugger->slug($teamer);
         $assignment = $disposition->getAssignment();
         $destination = $slugger->slug($assignment->getDestination());
 
-        $filename = sprintf('Honorarnote_%s_%s.pdf', $teamer, $disposition->getAssignment()->getDestination());
+        $filename = sprintf('Honorarnote_%s_%s.pdf', $teamerPart, $disposition->getAssignment()->getDestination());
         $contentDisposition = HeaderUtils::makeDisposition(
             HeaderUtils::DISPOSITION_ATTACHMENT,
             $filename,