diff --git a/app/components/dsfr/input_errorable.rb b/app/components/dsfr/input_errorable.rb
index 1510f210d..c2b394896 100644
--- a/app/components/dsfr/input_errorable.rb
+++ b/app/components/dsfr/input_errorable.rb
@@ -75,9 +75,9 @@ module Dsfr
                                       }.merge(input_error_class_names)))
 
         if errors_on_attribute?
-          @opts.deep_merge!(aria: {
-            describedby: describedby_id
-          })
+          @opts.deep_merge!(aria: { describedby: describedby_id })
+        elsif hintable?
+          @opts.deep_merge!(aria: { describedby: hint_id })
         end
 
         if @required
@@ -130,6 +130,10 @@ module Dsfr
         false
       end
 
+      def hintable?
+        false
+      end
+
       def hint?
         return true if get_slot(:hint).present?
 
diff --git a/app/components/editable_champ/siret_component.rb b/app/components/editable_champ/siret_component.rb
index 3957c23bb..8997b7c4e 100644
--- a/app/components/editable_champ/siret_component.rb
+++ b/app/components/editable_champ/siret_component.rb
@@ -2,4 +2,12 @@ class EditableChamp::SiretComponent < EditableChamp::EditableChampBaseComponent
   def dsfr_input_classname
     'fr-input'
     end
+
+  def hint_id
+    dom_id(@champ, :siret_info)
+  end
+
+  def hintable?
+    true
+  end
 end
diff --git a/app/views/champs/siret/show.turbo_stream.haml b/app/views/champs/siret/show.turbo_stream.haml
index 2e56df6aa..81781577b 100644
--- a/app/views/champs/siret/show.turbo_stream.haml
+++ b/app/views/champs/siret/show.turbo_stream.haml
@@ -1 +1,8 @@
-= turbo_stream.update dom_id(@champ, :siret_info), partial: 'shared/champs/siret/etablissement', locals: { siret: @siret, etablissement: @champ.etablissement }
+- if @champ.etablissement_fetch_error_key.present?
+  = turbo_stream.update @champ.describedby_id, partial: 'shared/champs/siret/etablissement', locals: { siret: @siret, etablissement: @champ.etablissement }
+  = turbo_stream.show @champ.describedby_id
+  = turbo_stream.hide(dom_id(@champ, :siret_info))
+- else
+  = turbo_stream.update dom_id(@champ, :siret_info), partial: 'shared/champs/siret/etablissement', locals: { siret: @siret, etablissement: @champ.etablissement }
+  = turbo_stream.show dom_id(@champ, :siret_info)
+  = turbo_stream.hide(@champ.describedby_id)