diff --git a/pkgs/development/python-modules/img2pdf/default.nix b/pkgs/development/python-modules/img2pdf/default.nix
index f2a30d00d3e8..7f56040ea2f5 100644
--- a/pkgs/development/python-modules/img2pdf/default.nix
+++ b/pkgs/development/python-modules/img2pdf/default.nix
@@ -80,6 +80,7 @@ buildPythonPackage rec {
     "test_jpg_cmyk"
     "test_miff_cmyk8"
     "test_tiff_cmyk8"
+    "test_miff_cmyk16"
   ];
 
   pythonImportsCheck = [ "img2pdf" ];