diff --git a/app/models/cart_item/prepaid_pack.rb b/app/models/cart_item/prepaid_pack.rb
index 73333f536..aa57a666a 100644
--- a/app/models/cart_item/prepaid_pack.rb
+++ b/app/models/cart_item/prepaid_pack.rb
@@ -41,7 +41,7 @@ class CartItem::PrepaidPack < CartItem::BaseItem
       return false
     end
     if pack.group_id != customer.group_id
-      errors.add(:group, "pack is reserved for members of group #{pack.group.name}")
+      errors.add(:group, I18n.t('cart_item_validation.pack_group', { GROUP: pack.group.name }))
       return false
     end
     true
diff --git a/app/models/cart_item/reservation.rb b/app/models/cart_item/reservation.rb
index 68ad770a0..36d137b7e 100644
--- a/app/models/cart_item/reservation.rb
+++ b/app/models/cart_item/reservation.rb
@@ -72,7 +72,7 @@ class CartItem::Reservation < CartItem::BaseItem
       end
 
       if slot.full?
-        errors.add(:slot, I18n.t('cart_item_validation.full')
+        errors.add(:slot, I18n.t('cart_item_validation.full'))
         return false
       end
 
diff --git a/app/models/cart_item/subscription.rb b/app/models/cart_item/subscription.rb
index e816452b7..50b297e9e 100644
--- a/app/models/cart_item/subscription.rb
+++ b/app/models/cart_item/subscription.rb
@@ -38,7 +38,7 @@ class CartItem::Subscription < CartItem::BaseItem
       return false
     end
     if plan.group_id != customer.group_id
-      errors.add(:group, "plan is reserved for members of group #{plan.group.name}")
+      errors.add(:group, I18n.t('cart_item_validation.plan_group', { GROUP: plan.group.name }))
       return false
     end
     true
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 83c57c0bc..3297408fc 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -517,8 +517,10 @@ en:
     deadline: "You can't reserve a slot %{MINUTES} minutes prior to its start"
     restricted: "This availability is restricted for subscribers"
     plan: "This subscription plan is disabled"
+    plan_group: "This subscription plan is reserved for members of group %{GROUP}"
     reserved: "This slot is already reserved"
     pack: "This prepaid pack is disabled"
+    pack_group: "This prepaid pack is reserved for members of group %{GROUP}"
     space: "This space is disabled"
     machine: "This machine is disabled"
     reservable: "This machine is not reservable"