diff --git a/tests/gems/flatpak/test_flatpak.py b/tests/gems/flatpak/test_flatpak.py
index 7e10df91..a65b16bd 100644
--- a/tests/gems/flatpak/test_flatpak.py
+++ b/tests/gems/flatpak/test_flatpak.py
@@ -7,6 +7,7 @@ from bauh.gems.flatpak import flatpak, VERSION_1_2
 
 class FlatpakTest(TestCase):
 
+    @patch(f'{__app_name__}.gems.flatpak.flatpak.SimpleProcess')
     @patch(f'{__app_name__}.gems.flatpak.flatpak.ProcessHandler.handle_simple', return_value=(True, """
     Looking for updates...
     
@@ -14,8 +15,9 @@ class FlatpakTest(TestCase):
     1.\t \torg.xpto.Xnote\tx86_64\tstable\tflathub\t< 4.3 MB
     
     """))
-    def test_map_update_download_size__for_flatpak_1_2(self, handle_simple: Mock):
+    def test_map_update_download_size__for_flatpak_1_2(self, SimpleProcess: Mock, handle_simple: Mock):
         download_size = flatpak.map_update_download_size(app_ids={'org.xpto.Xnote'}, installation='user', version=VERSION_1_2)
+        SimpleProcess.assert_called_once()
         handle_simple.assert_called_once()
 
         self.assertEqual({'org.xpto.Xnote': 4300000}, download_size)