diff --git a/app/components/instructeurs/column_table_header_component.rb b/app/components/instructeurs/column_table_header_component.rb
index fa4ff6f90..4cb90dd93 100644
--- a/app/components/instructeurs/column_table_header_component.rb
+++ b/app/components/instructeurs/column_table_header_component.rb
@@ -11,7 +11,7 @@ class Instructeurs::ColumnTableHeaderComponent < ApplicationComponent
 
   def classname(column)
     return 'status-col' if column.dossier_state?
-    return 'number-col' if column.type == :number
+    return 'number-col' if column.dossier_id?
     return 'sva-col' if column.column == 'sva_svr_decision_on'
   end
 
diff --git a/app/models/column.rb b/app/models/column.rb
index 5131c77c6..b02feda10 100644
--- a/app/models/column.rb
+++ b/app/models/column.rb
@@ -32,6 +32,7 @@ class Column
   def ==(other) = h_id == other.h_id # using h_id instead of id to avoid inversion of keys
 
   def notifications? = [table, column] == ['notifications', 'notifications']
+  def dossier_id? = [table, column] == ['self', 'id']
   def dossier_state? = [table, column] == ['self', 'state']
   def groupe_instructeur? = [table, column] == ['groupe_instructeur', 'id']
   def dossier_labels? = [table, column] == ['dossier_labels', 'label_id']
diff --git a/app/models/concerns/columns_concern.rb b/app/models/concerns/columns_concern.rb
index 0a4a98299..5d61dc982 100644
--- a/app/models/concerns/columns_concern.rb
+++ b/app/models/concerns/columns_concern.rb
@@ -51,7 +51,7 @@ module ColumnsConcern
       columns.filter { _1.id.in?(self.columns.map(&:id)) }
     end
 
-    def dossier_id_column = dossier_col(table: 'self', column: 'id', type: :number)
+    def dossier_id_column = dossier_col(table: 'self', column: 'id', type: :integer)
 
     def dossier_state_column
       options_for_select = I18n.t('instructeurs.dossiers.filterable_state').map(&:to_a).map(&:reverse)