diff --git a/app/models/communication/website/permalink/publication.rb b/app/models/communication/website/permalink/publication.rb
index 4a9b486c247e685b55ff2a2e51ac5bb919a5c423..fe9b5db233ee06ffe8be5c88fa2aa9a74e1c3f5f 100644
--- a/app/models/communication/website/permalink/publication.rb
+++ b/app/models/communication/website/permalink/publication.rb
@@ -33,7 +33,7 @@ class Communication::Website::Permalink::Publication < Communication::Website::P
   end
 
   def self.pattern_in_website(website, language)
-    "/#{website.special_page(Communication::Website::Page::ResearchHalPublication, language: language).slug_with_ancestors}/:year/:slug/"
+    "/#{website.special_page(Communication::Website::Page::ResearchHalPublication, language: language).slug_with_ancestors}/:year-:slug/"
   end
 
   protected