diff --git a/omicron/ssg/content.py b/omicron/ssg/content.py
index 8efce91..8c982d3 100644
--- a/omicron/ssg/content.py
+++ b/omicron/ssg/content.py
@@ -138,7 +138,7 @@ class Article(Content):
             meta["slug"],
             meta["date"],
             meta.get("updated", None),
-            meta.get("tags", None),
+            set(meta["tags"]) if "tags" in meta else None,
             meta.get("summary", None),
         )
         self.title: str = meta["title"]