diff --git a/api/tests/api/WorkingHours/BrowseWorkingHoursCest.php b/api/tests/api/WorkingHours/BrowseWorkingHoursCest.php
index 823495f..bd193e5 100644
--- a/api/tests/api/WorkingHours/BrowseWorkingHoursCest.php
+++ b/api/tests/api/WorkingHours/BrowseWorkingHoursCest.php
@@ -21,13 +21,28 @@ class BrowseWorkingHoursCest
         $I->seeHttpHeader('Access-Control-Max-Age');
     }
 
+    /**
+     * @param ApiTester $I
+     *
+     * @dataProvider validWorkingHoursFilterProvider
+     */
+    public function browseEmptyWorkingHours(ApiTester $I): void
+    {
+        $I->haveHttpHeader('Origin', Api::TEST_ORIGIN);
+        $I->sendGet('/working-hours', ['start-date' => '2020-04-01', 'end-date' => '2020-04-30']);
+        $I->seeResponseCodeIs(HttpCode::OK);
+        $I->canSeeHttpHeader('Access-Control-Allow-Origin', Api::TEST_ORIGIN);
+        $I->seeResponseIsJson();
+        $I->seeResponseEquals('[]');
+    }
+
     public function validWorkingHoursFilterProvider(): array
     {
         return [
             [[null]],
             [['start-date' => '2020-01-01', 'end-date' => '2020-01-08']],
             [['start-date' => '2020-01-01', 'end-date' => '2020-04-30']],
-            [['start-date' => '2020-04-01', 'end-date' => '2020-04-30']],
+            [['start-date' => '2020-03-01', 'end-date' => '2020-03-07']],
         ];
     }