diff --git a/hypopub.py b/hypopub.py
index 48e520b..222d6e7 100644
--- a/hypopub.py
+++ b/hypopub.py
@@ -37,17 +37,22 @@ def send_micropub(entry: atoma.atom.AtomEntry):
 
 
     endpoint = os.getenv("MICROPUB_ENDPOINT")
-    session.post(f"{endpoint}", json={
+    r = session.post(f"{endpoint}", json={
       "type": ["h-entry"],
       "properties":{
             "published": [entry.published.strftime("%Y-%m-%dT%H:%M:%S")],
             "content":[{
                 "html": entry.content.value
             }],
-            "in-reply-to": [annotation['target'][0]['source']]
+            "category": annotation['tags'] + ['hypothes.is'],
+            "in-reply-to": [annotation['target'][0]['source']],
+            "hypothesis-link": [json_link]
       }  
     })
 
+    if r.status_code > 300:
+        raise Exception(f"Request failed: {r.status_code}: {r.text}")
+
 
 def main():