diff --git a/crates/script/src/model.rs b/crates/script/src/model.rs
index d3c084af..4813743a 100644
--- a/crates/script/src/model.rs
+++ b/crates/script/src/model.rs
@@ -394,6 +394,8 @@ fn alias(k: &str) -> Option<&'static str> {
         "content" | "contents" => "contents",
         "maskshape" | "maskpath" => "path",
         "maskfeather" => "feather",
+        // A light's options name it "ADBE Casts Shadows" in After Effects (#1063).
+        "adbecastsshadows" => "castsShadows",
         "maskopacity" => "opacity",
         "maskexpansion" | "maskoffset" => "expansion",
         "sourcetext" => "sourceText",
diff --git a/crates/script/src/tests.rs b/crates/script/src/tests.rs
index 34333fe6..a838a866 100644
--- a/crates/script/src/tests.rs
+++ b/crates/script/src/tests.rs
@@ -1104,3 +1104,19 @@ fn source_point_conversions_follow_the_layer_transform() {
     assert!(near(&v[0], 350.0) && near(&v[1], 275.0), "{v}");
     assert!(near(&v[2], 100.0) && near(&v[3], 50.0), "{v}");
 }
+
+/// #1063: a script asks a light's options for After Effects' "ADBE Casts Shadows".
+#[test]
+fn light_options_accept_the_after_effects_casts_shadows_name() {
+    let mut s = session();
+    let o = ok(
+        &mut s,
+        r#"
+        var comp = app.project.items.addComp("Repro", 1920, 1080, 1, 10, 25);
+        var light = comp.layers.addLight("Key", [100, 100]);
+        var c = light.property("ADBE Light Options Group").property("ADBE Casts Shadows");
+        c == null ? "null" : c.name
+        "#,
+    );
+    assert_ne!(o.result, json!("null"), "{:?}", o.result);
+}