diff --git a/Tests/test_imageqt.py b/Tests/test_imageqt.py
index 53b1fef7c..a7947b0a2 100644
--- a/Tests/test_imageqt.py
+++ b/Tests/test_imageqt.py
@@ -42,7 +42,7 @@ def test_rgb():
 
 
 def test_image():
-    for mode in ("1", "RGB", "RGBA", "L", "P"):
+    for mode in ("1", "RGB", "RGBA", "L", "P", "I;16"):
         ImageQt.ImageQt(hopper(mode))