diff --git a/apps/red-ui/src/app/modules/file-preview/components/annotation-actions/annotation-actions.component.ts b/apps/red-ui/src/app/modules/file-preview/components/annotation-actions/annotation-actions.component.ts
index e6e913e2c..5392cc4ad 100644
--- a/apps/red-ui/src/app/modules/file-preview/components/annotation-actions/annotation-actions.component.ts
+++ b/apps/red-ui/src/app/modules/file-preview/components/annotation-actions/annotation-actions.component.ts
@@ -147,13 +147,13 @@ export class AnnotationActionsComponent implements OnChanges {
     hideAnnotation() {
         this._annotationManager.hide(this.viewerAnnotations);
         this._annotationManager.deselect();
-        viewerAnnotations.forEach(a => this._annotationManager.addToHidden(a.Id));
+        this.viewerAnnotations.forEach(a => this._annotationManager.addToHidden(a.Id));
     }
 
     showAnnotation() {
         this._annotationManager.show(this.viewerAnnotations);
         this._annotationManager.deselect();
-        viewerAnnotations.forEach(a => this._annotationManager.removeFromHidden(a.Id));
+        this.viewerAnnotations.forEach(a => this._annotationManager.removeFromHidden(a.Id));
     }
 
     resize() {