diff --git a/crates/effects/src/reshape.rs b/crates/effects/src/reshape.rs
index c629cc10ca..8da6a075b4 100644
--- a/crates/effects/src/reshape.rs
+++ b/crates/effects/src/reshape.rs
@@ -548,7 +548,11 @@ fn as_art_opts(
     let mut art = match &n.kind {
         NodeKind::Image(im) => {
             let frame = shapes::rectangle(Rect::new(0.0, 0.0, im.width as f64, im.height as f64)).transformed(im.xf);
-            let image = Node::new(n.id, n.kind.clone());
+            let mut image = Node::new(n.id, n.kind.clone());
+            // The image keeps its color mask, so it shows its masked pixels.
+            if let Some(m) = &n.extras().color_mask {
+                image.extras_mut().color_mask = Some(m.clone());
+            }
             let clipped = || {
                 let mut clip = Node::path(n.id, frame.clone(), Appearance::default());
                 if let NodeKind::Path { clipping, .. } = &mut clip.kind {
diff --git a/crates/engine/src/cmd/addons/image/mask/tests.rs b/crates/engine/src/cmd/addons/image/mask/tests.rs
index 35fbf950f4..3e1999888a 100644
--- a/crates/engine/src/cmd/addons/image/mask/tests.rs
+++ b/crates/engine/src/cmd/addons/image/mask/tests.rs
@@ -657,6 +657,23 @@ fn an_envelope_warp_draws_the_masked_pixels() {
     assert!(drawn_at(doc(&s), red)[3] > 0, "the red block");
 }
 
+/// A geometry effect draws the image's masked pixels, and Expand Appearance keeps the mask on the
+/// image it makes.
+#[test]
+fn a_transform_effect_keeps_the_mask() {
+    let (mut s, id) = open(&framed());
+    s.execute(COLOR_MASK, &hide_white()).unwrap();
+    let moved = |p: vectorcraft_geom::Point| vectorcraft_geom::Point::new(p.x + 30.0, p.y);
+    let (white, red) = (moved(pixel_at(doc(&s), id, 1, 1)), moved(pixel_at(doc(&s), id, 4, 4)));
+    s.execute("effect.apply", &json!({"ids": [id.0], "effect": "distort.transform", "params": {"moveH": 30}})).unwrap();
+    assert_eq!(drawn_at(doc(&s), white)[3], 0, "the hidden white");
+    assert_eq!(drawn_at(doc(&s), red), RED, "the red block");
+    s.execute("effect.expandAppearance", &json!({})).unwrap();
+    let mut masks = vec![];
+    doc(&s).walk(|n| masks.extend(Document::color_mask_of(n).cloned()));
+    assert_eq!(masks.len(), 1, "the expanded image keeps its mask");
+}
+
 /// A pattern whose tile holds a masked image counts as one with a see-through image, so outputs
 /// without transparency expand it before they flatten.
 #[test]