diff --git a/crates/ui-egui/src/canvas.rs b/crates/ui-egui/src/canvas.rs
index 7082329ff..081baf746 100644
--- a/crates/ui-egui/src/canvas.rs
+++ b/crates/ui-egui/src/canvas.rs
@@ -8002,6 +8002,39 @@ mod tests {
         assert!((c - xf.to_doc(at)).hypot() < 1e-6, "{c:?}");
     }
 
+    #[test]
+    fn a_library_symbol_dropped_on_the_canvas_is_added_and_placed_there_in_one_step() {
+        let mut app = VectorcraftApp::new(Session::new(), Default::default());
+        app.session.execute("file.new", &json!({"width": 400, "height": 300})).unwrap();
+        // Dropped on art too, it is placed, not applied to the art.
+        app.session.execute("shape.rectangle", &json!({"x": 200, "y": 150, "width": 100, "height": 60})).unwrap();
+        app.session.execute("select.none", &json!({})).unwrap();
+        let ctx = egui::Context::default();
+        frame(&mut app, &ctx, vec![]);
+        let xf = Xf::new(app.canvas_rect.unwrap(), app.view().unwrap());
+        let undo = app.session.active().unwrap().history.undo.len();
+        let at = xf.to_screen(Point::new(250.0, 180.0));
+        egui::DragAndDrop::set_payload(&ctx, widgets::PanelDrag::LibrarySymbol { library: "basic-shapes".into(), name: "Star".into() });
+        let up = egui::Event::PointerButton { pos: at, button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() };
+        frame(&mut app, &ctx, vec![egui::Event::PointerMoved(at), up]);
+        let st = app.session.active().unwrap();
+        assert_eq!(st.doc.symbols.iter().map(|s| s.name.as_str()).collect::<Vec<_>>(), ["Star"]);
+        assert_eq!(st.history.undo.len(), undo + 1, "added and placed as one undo step");
+        assert_eq!(st.history.undo.last().unwrap().label, "Add to Symbols");
+        let placed = st.selection.objects.first().copied().unwrap();
+        let n = st.doc.node(placed).unwrap();
+        assert!(matches!(&n.kind, NodeKind::SymbolInstance { symbol, .. } if symbol == "Star"));
+        // The registration point (the centre) is where it was dropped, in document coordinates
+        // (the pointer's screen position, which rounds 250, 180 a little).
+        let size = st.doc.unknown.get(vectorcraft_doc::SYMBOL_SIZES).and_then(|m| m.get("Star")).cloned().unwrap();
+        let b = n.geometric_bounds().unwrap();
+        assert!((b.width() - size[0].as_f64().unwrap()).abs() < 1e-6, "{b:?} {size}");
+        assert!((b.center() - xf.to_doc(at)).hypot() < 1e-6 && (b.center() - Point::new(250.0, 180.0)).hypot() < 0.1, "{b:?}");
+        app.run("edit.undo", json!({})).unwrap();
+        let st = app.session.active().unwrap();
+        assert!(st.doc.symbols.is_empty() && st.doc.node(placed).is_none());
+    }
+
     #[test]
     fn a_brush_dropped_on_a_path_is_applied_to_it() {
         let mut app = VectorcraftApp::new(Session::new(), Default::default());