diff --git a/lib/content-services/src/lib/tag/services/tag.service.ts b/lib/content-services/src/lib/tag/services/tag.service.ts
index 5d5493c2b3..8f1e815461 100644
--- a/lib/content-services/src/lib/tag/services/tag.service.ts
+++ b/lib/content-services/src/lib/tag/services/tag.service.ts
@@ -66,7 +66,7 @@ export class TagService {
         const tagBody = new TagBody();
         tagBody.tag = tagName;
 
-        const observableAdd = from(this.apiService.getInstance().core.tagsApi.addTag(nodeId, tagBody));
+        const observableAdd = from(this.apiService.getInstance().core.tagsApi.addTag(nodeId, [tagBody]));
 
         observableAdd.subscribe((tagEntry: TagEntry) => {
             this.refresh.emit(tagEntry);