diff --git a/app/controllers/backoffice/dossiers_controller.rb b/app/controllers/backoffice/dossiers_controller.rb
index 49cfe3b33..cd99872ed 100644
--- a/app/controllers/backoffice/dossiers_controller.rb
+++ b/app/controllers/backoffice/dossiers_controller.rb
@@ -37,7 +37,8 @@ class Backoffice::DossiersController < Backoffice::DossiersListController
     @search_terms = params[:q]
 
     # exact id match?
-    @dossiers = Dossier.where(id: @search_terms)
+    @dossiers = Dossier.where(id: @search_terms.to_i) if @search_terms.to_i < 2147483647
+    @dossiers = Dossier.none if @dossiers.nil?
 
     # full text search
     unless @dossiers.any?
diff --git a/app/views/layouts/left_panels/_left_panel_backoffice_dossierscontroller_index.html.haml b/app/views/layouts/left_panels/_left_panel_backoffice_dossierscontroller_index.html.haml
index 9537c9c20..f3c6dbd54 100644
--- a/app/views/layouts/left_panels/_left_panel_backoffice_dossierscontroller_index.html.haml
+++ b/app/views/layouts/left_panels/_left_panel_backoffice_dossierscontroller_index.html.haml
@@ -15,5 +15,5 @@
   #procedure_list
     - @facade_data_view.gestionnaire_procedures_name_and_id_list.each do |procedure|
       = link_to backoffice_dossiers_procedure_path(procedure[:id]), {title: procedure[:libelle]} do
-        %div.procedure_list_element{ class: ('active' if procedure[:id] == @facade_data_view.procedure.id) }
+        %div.procedure_list_element{ class: ('active' if procedure[:id] == @facade_data_view.procedure.id rescue '') }
           = truncate(procedure[:libelle], length: 50)