1 files changed, 1 insertions, 1 deletions

diff --git a/test/manual/image-transforms-tests.el b/test/manual/image-transforms-tests.el
index d601b9397e3..e8b301e3331 100644
--- a/test/manual/image-transforms-tests.el
+++ b/test/manual/image-transforms-tests.el
@@ -67,7 +67,7 @@
                          <rect x='0' y='0' width='10' height='10'
                                style='fill:none;stroke-width:1;stroke:#000'/>
                        </svg>"))
-    (insert-header "Test Crop: cropping an image")
+    (insert-header "Test Crop: cropping an image (only works with ImageMagick)")
     (insert-test "all params" top-left image '(:crop (10 10 0 0)))
     (insert-test "width/height only" middle image '(:crop (10 10)))
     (insert-test "negative x y" middle image '(:crop (10 10 -10 -10)))