diff --git a/packages/frontend/src/components/MkWatermarkEditorDialog.vue b/packages/frontend/src/components/MkWatermarkEditorDialog.vue
index 9a4a1b0abf..f3eacf81d1 100644
--- a/packages/frontend/src/components/MkWatermarkEditorDialog.vue
+++ b/packages/frontend/src/components/MkWatermarkEditorDialog.vue
@@ -167,7 +167,7 @@ const rotate = computed({
 	set: (v) => watermarkConfig.value = { ...watermarkConfig.value, rotate: v },
 });
 const preserveBoundingRect = computed({
-	get: () => watermarkConfig.value?.noBoundingBoxExpansion ?? false,
+	get: () => !(watermarkConfig.value?.noBoundingBoxExpansion ?? false),
 	set: (v) => watermarkConfig.value = { ...watermarkConfig.value, noBoundingBoxExpansion: !v },
 });