diff --git a/sources/AppBundle/Accounting/InvoicingPdfGenerator.php b/sources/AppBundle/Accounting/InvoicingPdfGenerator.php
index 398cb45ce..c77c7e144 100644
--- a/sources/AppBundle/Accounting/InvoicingPdfGenerator.php
+++ b/sources/AppBundle/Accounting/InvoicingPdfGenerator.php
@@ -10,6 +10,7 @@
 use AppBundle\Accounting\Model\Invoicing;
 use AppBundle\Accounting\Model\InvoicingDetail;
 use AppBundle\Compta\BankAccount\BankAccountFactory;
+use Symfony\Component\String\Slugger\AsciiSlugger;
 
 class InvoicingPdfGenerator
 {
@@ -105,12 +106,16 @@ public function generateQuotation(Invoicing $invoicing, ?string $path = null): s
 
     public function getInvoiceFilename(Invoicing $invoicing): string
     {
-        return 'Facture - ' . $invoicing->getCompany() . ' - ' . ($invoicing->getInvoiceDate() ? $invoicing->getInvoiceDate()->format('Y-m-d') : '') . '.pdf';
+        $slugger = new AsciiSlugger();
+
+        return 'Facture - ' . $slugger->slug($invoicing->getCompany()) . ' - ' . ($invoicing->getInvoiceDate() ? $invoicing->getInvoiceDate()->format('Y-m-d') : '') . '.pdf';
     }
 
     public function getQuotationFilename(Invoicing $invoicing): string
     {
-        return 'Devis - ' . $invoicing->getCompany() . ' - ' . ($invoicing->getQuotationDate() ? $invoicing->getQuotationDate()->format('Y-m-d') : '') . '.pdf';
+        $slugger = new AsciiSlugger();
+
+        return 'Devis - ' . $slugger->slug($invoicing->getCompany()) . ' - ' . ($invoicing->getQuotationDate() ? $invoicing->getQuotationDate()->format('Y-m-d') : '') . '.pdf';
     }
 
     private function buildPdf(\DateTimeImmutable $date, bool $isSubjectedToVat): PDF_Facture
diff --git a/tests/behat/features/Admin/Tresorerie/DevisFactures.feature b/tests/behat/features/Admin/Tresorerie/DevisFactures.feature
index af7c22e0d..d63e6fba4 100644
--- a/tests/behat/features/Admin/Tresorerie/DevisFactures.feature
+++ b/tests/behat/features/Admin/Tresorerie/DevisFactures.feature
@@ -143,14 +143,14 @@ Feature: Administration - Trésorerie - Devis/Facture
     When I follow "Devis"
     # Téléchargement du devis
     And I follow the button of tooltip "Télécharger le devis ESN dev en folie"
-    Then the response header "Content-disposition" should match '#attachment; filename="Devis - ESN dev en folie - (.*).pdf"#'
+    Then the response header "Content-disposition" should match '#attachment; filename="Devis - ESN-dev-en-folie - (.*).pdf"#'
     When I parse the pdf downloaded content
     Then The page "1" of the PDF should contain "ESN dev en folie"
     # Téléchargement de la facture
     When I go to "/admin/"
     And I follow "Factures"
     And I follow the button of tooltip "Télécharger la facture 2026-3"
-    Then the response header "Content-disposition" should match '#attachment; filename="Facture - ESN dev en folie - (.*).pdf"#'
+    Then the response header "Content-disposition" should match '#attachment; filename="Facture - ESN-dev-en-folie - (.*).pdf"#'
     When I parse the pdf downloaded content
     Then The page "1" of the PDF should contain "N° TVA Intracommunautaire : FR7612345"
 
@@ -163,7 +163,7 @@ Feature: Administration - Trésorerie - Devis/Facture
     Then the ".content h2" element should contain "Liste des devis"
     And I should see "My company Ltd"
     And I follow the button of tooltip "Télécharger le devis My company Ltd"
-    Then the response header "Content-disposition" should match '#attachment; filename="Devis - My company Ltd - (.*).pdf"#'
+    Then the response header "Content-disposition" should match '#attachment; filename="Devis - My-company-Ltd - (.*).pdf"#'
     When I parse the pdf downloaded content
     Then The page "1" of the PDF should contain "0,00 €"