diff --git a/src/app/shared/swiper/swiper.page.html b/src/app/shared/swiper/swiper.page.html
index 23959e1c6..1c893af7c 100644
--- a/src/app/shared/swiper/swiper.page.html
+++ b/src/app/shared/swiper/swiper.page.html
@@ -29,7 +29,7 @@
 </ion-content>
 
 <ion-footer>
-  <div *ngIf="publicationList.Files.length > 1" class="dots-container">
+  <div *ngIf="publicationList?.Files?.length > 1" class="dots-container">
     <span *ngFor="let files of publicationList.Files; let k = index"
       [class.dotsSwiper]="true"
       [class.active-dot]="swiperIndex === k"