diff --git a/tests/test_video.py b/tests/test_video.py
index f0b8d3d..d417573 100644
--- a/tests/test_video.py
+++ b/tests/test_video.py
@@ -126,11 +126,13 @@ def ioctl(self, fd, ioc, arg):  # noqa: C901
                 raise OSError(EINVAL, "ups!")
             arg.name = self.input0_name
             arg.type = raw.InputType.CAMERA
-        if isinstance(arg, raw.v4l2_output):
+        elif isinstance(arg, raw.v4l2_output):
             if arg.index > 0:
                 raise OSError(EINVAL, "ups!")
             arg.name = self.input0_name
             arg.type = raw.OutputType.ANALOG
+        elif isinstance(arg, raw.v4l2_standard):
+            raise OSError(EINVAL, "ups!")
         elif isinstance(arg, raw.v4l2_query_ext_ctrl):
             if arg.index == 0:
                 arg.name = b"brightness"