diff --git a/app/controllers/admin/accompagnateurs_controller.rb b/app/controllers/admin/accompagnateurs_controller.rb
index 86adfbe91..7222fc0ca 100644
--- a/app/controllers/admin/accompagnateurs_controller.rb
+++ b/app/controllers/admin/accompagnateurs_controller.rb
@@ -4,6 +4,9 @@ class Admin::AccompagnateursController < AdminController
 
   before_action :retrieve_procedure
 
+  ASSIGN = 'assign'
+  NOT_ASSIGN = 'not_assign'
+
   def show
     assign_scope = @procedure.gestionnaires
 
@@ -47,10 +50,10 @@ class Admin::AccompagnateursController < AdminController
     to = params[:to]
 
     case to
-    when 'assign'
+    when ASSIGN
       gestionnaire.assign_to_procedure(procedure)
       flash.notice = "L'accompagnateur a bien été affecté"
-    when 'not_assign'
+    when NOT_ASSIGN
       gestionnaire.remove_from_procedure(procedure)
       flash.notice = "L'accompagnateur a bien été désaffecté"
     end
diff --git a/app/views/admin/accompagnateurs/_list_assign.html.haml b/app/views/admin/accompagnateurs/_list_assign.html.haml
index 5160a8292..4e9171ccf 100644
--- a/app/views/admin/accompagnateurs/_list_assign.html.haml
+++ b/app/views/admin/accompagnateurs/_list_assign.html.haml
@@ -9,7 +9,7 @@
     - @accompagnateurs_assign.each do |accompagnateur|
       %tr
         %td.col-md-1.col-lg-1.col-sm-1.col-xs-1.col-sm-1.col-xs-1.center
-          %a.btn.btn-primary{ href: "#{admin_procedure_accompagnateurs_path(procedure_id: @procedure.id, accompagnateur_id: accompagnateur.id, to: 'not_assign')}", 'data-method' => 'put' }
+          %a.btn.btn-primary{ href: "#{admin_procedure_accompagnateurs_path(procedure_id: @procedure.id, accompagnateur_id: accompagnateur.id, to: Admin::AccompagnateursController::NOT_ASSIGN)}", 'data-method' => 'put' }
             .fa.fa-arrow-left
         %td{ style: 'padding-top: 11px; font-size: 15px; text-align: right;' }= accompagnateur.email
 
diff --git a/app/views/admin/accompagnateurs/_list_not_assign.html.haml b/app/views/admin/accompagnateurs/_list_not_assign.html.haml
index 9cecdbee1..bba53bfd1 100644
--- a/app/views/admin/accompagnateurs/_list_not_assign.html.haml
+++ b/app/views/admin/accompagnateurs/_list_not_assign.html.haml
@@ -16,7 +16,7 @@
       %tr
         %td.col-xs-11{ style: 'padding-top: 11px; font-size: 15px;' }= accompagnateur.email
         %td.center
-          %a.btn.btn-success.gestionnaire-affectation{ href: "#{admin_procedure_accompagnateurs_path(procedure_id: @procedure.id, accompagnateur_id: accompagnateur.id, to: 'assign')}", 'data-method' => 'put' }
+          %a.btn.btn-success.gestionnaire-affectation{ href: "#{admin_procedure_accompagnateurs_path(procedure_id: @procedure.id, accompagnateur_id: accompagnateur.id, to: Admin::AccompagnateursController::ASSIGN)}", 'data-method' => 'put' }
             .fa.fa-arrow-right