diff --git a/Tests/test_image.py b/Tests/test_image.py
index 4a056df4083..8e7e40c05da 100644
--- a/Tests/test_image.py
+++ b/Tests/test_image.py
@@ -1037,8 +1037,8 @@ def test_roundtrip_bytes_method(self, mode: str) -> None:
 
     @pytest.mark.parametrize("mode", modes)
     def test_getdata_putdata(self, mode: str) -> None:
-        if is_big_endian and mode in ("BGR;15", "BGR;16"):
-            pytest.xfail(f"Known failure of {mode} on big-endian")
+        if is_big_endian and mode == "BGR;15":
+            pytest.xfail("Known failure of BGR;15 on big-endian")
         im = hopper(mode)
         reloaded = Image.new(mode, im.size)
         reloaded.putdata(im.getdata())