diff --git a/tests/images/minifiedBaboon.png b/tests/images/minifiedBaboon.png
new file mode 100644
index 0000000..4478e04
Binary files /dev/null and b/tests/images/minifiedBaboon.png differ
diff --git a/tests/test_images.nim b/tests/test_images.nim
index a9e0ccc..5f237f0 100644
--- a/tests/test_images.nim
+++ b/tests/test_images.nim
@@ -111,6 +111,12 @@ block:
     b = a.magnifyBy2(2)
   b.writeFile("tests/images/magnifiedBy4.png")
 
+block:
+  let
+    a = readImage("tests/images/png/baboon.png")
+    b = a.minifyBy2()
+  b.writeFile("tests/images/minifiedBaboon.png")
+
 block:
   let a = newImage(100, 100)
   a.fill(rgbx(50, 100, 150, 200))