diff --git a/components/Window.vue b/components/Window.vue
index bb84c67..4d54503 100644
--- a/components/Window.vue
+++ b/components/Window.vue
@@ -235,6 +235,11 @@ const props = defineProps({
     },
 });
 
+defineExpose({
+    actualWidth: () => root.value.clientWidth,
+    actualHeight: () => root.value.clientHeight,
+});
+
 const emit = defineEmits(['update:scale', 'update:title']);
 
 const { fontFamilies } = useFonts();
diff --git a/pages/generator.vue b/pages/generator.vue
index 9f14b47..ddeba22 100644
--- a/pages/generator.vue
+++ b/pages/generator.vue
@@ -66,12 +66,10 @@ export default {
         watch(pane, (value) => {
             if (settings.lockWindowSize) {
                 settings.width =
-                    (pane.value.actualWidth() + Number(settings.lockWindowPaddingX)) *
-                    settings.scale;
+                    (value.actualWidth() + Number(settings.lockWindowPaddingX)) * settings.scale;
 
                 settings.height =
-                    (pane.value.actualHeight() + Number(settings.lockWindowPaddingY)) *
-                    settings.scale;
+                    (value.actualHeight() + Number(settings.lockWindowPaddingY)) * settings.scale;
             }
 
             nextTick(() => (ready.value = true));