diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7daf78ee5..c19084995 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog Fab-manager
 
+- Fix a bug: unable to reserve a machine with payment on site
+
 ## v5.5.2 2022 November 16
 
 - Fix a bug: unable to export statistics
diff --git a/app/frontend/src/javascript/directives/cart.js b/app/frontend/src/javascript/directives/cart.js
index 4e98469cb..56bc893ab 100644
--- a/app/frontend/src/javascript/directives/cart.js
+++ b/app/frontend/src/javascript/directives/cart.js
@@ -824,8 +824,8 @@ Application.Directives.directive('cart', ['$rootScope', '$uibModal', 'dialogs',
               ($scope.user.id === $rootScope.currentUser.id && amountToPay > 0)) {
               return payOnline(items);
             } else {
-              if (AuthService.isAuthorized(['admin', 'manager'] && $scope.user.id !== $rootScope.currentUser.id) ||
-                (amountToPay === 0 && !hasOtherDeadlines())) {
+              if ((AuthService.isAuthorized(['admin', 'manager']) && $scope.user.id !== $rootScope.currentUser.id) ||
+                  (amountToPay === 0 && !hasOtherDeadlines())) {
                 return payOnSite(items);
               }
             }