diff --git a/app/views/administrateurs/attestation_templates/show.pdf.prawn b/app/views/administrateurs/attestation_templates/show.pdf.prawn
index 287d7951a..3b2b89f2e 100644
--- a/app/views/administrateurs/attestation_templates/show.pdf.prawn
+++ b/app/views/administrateurs/attestation_templates/show.pdf.prawn
@@ -20,7 +20,7 @@ max_logo_height = 50.mm
 max_signature_size = 50.mm
 
 def normalize_pdf_text(text)
-  text&.tr("\t", '  ')
+  strip_tags(text&.tr("\t", '  '))
 end
 
 title = normalize_pdf_text(@attestation.fetch(:title))