diff --git a/app/controllers/admin/change_dossier_state_controller.rb b/app/controllers/admin/change_dossier_state_controller.rb
index 86611da4f..0b199b3f8 100644
--- a/app/controllers/admin/change_dossier_state_controller.rb
+++ b/app/controllers/admin/change_dossier_state_controller.rb
@@ -10,5 +10,10 @@ class Admin::ChangeDossierStateController < AdminController
 
   def check
     @dossier = Dossier.find(params[:dossier][:id])
+
+    unless @dossier.procedure.administrateur.email == current_administrateur.email
+      flash.alert = 'Dossier introuvable'
+      return redirect_to admin_change_dossier_state_path
+    end
   end
 end
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