diff --git a/src/components/draw-app/properties/SignalProperty.vue b/src/components/draw-app/properties/SignalProperty.vue
index 1748aff..f2688bd 100644
--- a/src/components/draw-app/properties/SignalProperty.vue
+++ b/src/components/draw-app/properties/SignalProperty.vue
@@ -49,9 +49,9 @@ onMounted(() => {
 
 function onUpdate() {
   signalModel.direction = (directionSelect as never)[signalDirection.value];
-  const platform = drawStore.selectedGraphic as Signal;
-  if (platform) {
-    drawStore.getDrawApp().updateGraphicAndRecord(platform, signalModel);
+  const signal = drawStore.selectedGraphic as Signal;
+  if (signal) {
+    drawStore.getDrawApp().updateGraphicAndRecord(signal, signalModel);
   }
 }
 </script>