diff --git a/config/locales/app.admin.en.yml b/config/locales/app.admin.en.yml
index b8d88ab5b..63c3776f5 100644
--- a/config/locales/app.admin.en.yml
+++ b/config/locales/app.admin.en.yml
@@ -6,28 +6,28 @@ en:
         all_machines: "All machines"
         manage_machines_categories: "Manage machines categories"
       machine_categories_list:
-        machine_categories: "Machines Categories"
+        machine_categories: "Machines categories"
         add_a_machine_category: "Add a machine category"
         name: "Name"
-        machines_number: "Nb of machines"
+        machines_number: "Number of machines"
         edit: "Edit"
       machine_category_modal:
-        new_machine_category: "New categorie"
-        edit_machine_category: "Edit catégorie"
-        successfully_created: "The new machine category has been created."
+        new_machine_category: "New category"
+        edit_machine_category: "Edit category"
+        successfully_created: "The new machine category has been successfully created."
         unable_to_create: "Unable to delete the machine category: "
-        successfully_updated: "The machine category has been updated."
+        successfully_updated: "The machine category has been successfully updated."
         unable_to_update: "Unable to modify the machine category: "
       machine_category_form:
         name: "Name of category"
-        assigning_machines: "Assigning the machines to this category"
+        assigning_machines: "Assign machines to this category"
         save: "Save"
       delete_machine_category_modal:
         confirmation_required: "Confirmation required"
         confirm: "Confirm"
-        deleted: "The machine category request has been deleted."
+        deleted: "The machine category has been successfully deleted."
         unable_to_delete: "Unable to delete the machine category : "
-        confirm_delete_supporting_documents_type: "Do you really want to remove this machine category ?"
+        confirm_delete_supporting_documents_type: "Do you really want to remove this machine category?"
       machine_form:
         name: "Name"
         illustration: "Visual"