diff --git a/app/assets/stylesheets/dossiers_table.scss b/app/assets/stylesheets/dossiers_table.scss
index e55695880..dceaaa759 100644
--- a/app/assets/stylesheets/dossiers_table.scss
+++ b/app/assets/stylesheets/dossiers_table.scss
@@ -2,6 +2,10 @@
 @import 'constants';
 
 .dossiers-table {
+  .fr-cell--fixed {
+    width: 1%; // never expand this cell when table is too wide
+  }
+
   a:not(.fr-link) {
     background-image: none; // remove DSFR underline
   }