diff --git a/src/content_scripts/protoots.js b/src/content_scripts/protoots.js
index bb79779..dc83ac7 100644
--- a/src/content_scripts/protoots.js
+++ b/src/content_scripts/protoots.js
@@ -241,7 +241,8 @@ async function addProplate(element) {
 			//if we couldn't get an id from the div try the closest article
 			id = element.closest("article[data-id]")?.dataset.id;
 		}
-		return id.replace("f-", "");
+		if (id) id = id.replace("f-", "");
+		return id;
 	}
 
 	/**