diff --git a/controllers/admin/AdminImportController.php b/controllers/admin/AdminImportController.php
index 57bcba88d..cb2be6f3c 100644
--- a/controllers/admin/AdminImportController.php
+++ b/controllers/admin/AdminImportController.php
@@ -1989,9 +1989,6 @@ class AdminImportControllerCore extends AdminController
 				$addresses = $customer->getAddresses((int)Configuration::get('PS_LANG_DEFAULT'));
 			}
 
-			if (!isset($customer_groups) || count($customer_groups) == 0)
-				$customer_groups = array(0 => Configuration::get('PS_CUSTOMER_GROUP'));
-
 			// Group Importation
 			if (isset($info['group']) && !empty($info['group']))
 			{
@@ -2064,6 +2061,7 @@ class AdminImportControllerCore extends AdminController
 			//set temporally for validate field
 			$customer->id_shop = $default_shop->id;
 			$customer->id_shop_group = $default_shop->getGroup()->id;
+			$customer_groups[] = $customer->id_default_group;
 			$customer_groups = array_flip(array_flip($customer_groups));
 			$res = true;
 			if (($field_error = $customer->validateFields(UNFRIENDLY_ERROR, true)) === true &&
diff --git a/docs/csv_import/customers_import.csv b/docs/csv_import/customers_import.csv
index bb119bcc0..8f839bc8e 100644
--- a/docs/csv_import/customers_import.csv
+++ b/docs/csv_import/customers_import.csv
@@ -1,3 +1,3 @@
-id;Active (0/1);Gender ID (Mr=1, Ms=2, else 9);E-mail*;Password*;Birthday;Lastname*;Firstname*;Newletter (0/1);Opt-in (0/1)
-1;1;1;johndoe@prestashop.com;#res152EDRF;1987-09-21;Doe;John;1;1
-2;1;2;mariedoe@prestashop.com;58@ret26#;1986-10-14;Doe;Marie;0;1
\ No newline at end of file
+id;Active (0/1);Gender ID (Mr=1, Ms=2, else 9);E-mail*;Password*;Birthday;Lastname*;Firstname*;Newletter (0/1);Opt-in (0/1);Groups (x,y,z...);Default group ID;ID / Name of shop
+1;1;1;johndoe@prestashop.com;#res152EDRF;1987-09-21;Doe;John;1;1;1,2;1;1
+2;1;2;mariedoe@prestashop.com;58@ret26#;1986-10-14;Doe;Marie;0;1;1,3;3;1
\ No newline at end of file