diff --git a/nuxt/components/modal/EditBookRecommendation.vue b/nuxt/components/modal/EditBookRecommendation.vue
index 732ef56..06cefe4 100644
--- a/nuxt/components/modal/EditBookRecommendation.vue
+++ b/nuxt/components/modal/EditBookRecommendation.vue
@@ -144,7 +144,7 @@ async function onSubmit(event: FormSubmitEvent<any>) {
           <UFormGroup label="Beschreibung" name="description">
             <UTextarea v-model="state.description" />
           </UFormGroup>
-          <img v-if="state.cover_image" :src="$storage(state.cover_image)" alt="Cover" class="size-1/3 content-center rounded-lg">
+          <img v-if="state.cover_image && typeof state.cover_image === 'string'" :src="$storage(state.cover_image)" alt="Cover" class="size-1/3 content-center rounded-lg">
           <UFormGroup label="Cover" name="cover_image">
             <UInput type="file" @change="handleCoverImageInput" />
           </UFormGroup>