diff --git a/poptimal.js b/poptimal.js
index ce920bf..ed0da34 100644
--- a/poptimal.js
+++ b/poptimal.js
@@ -207,18 +207,23 @@ async function send_replies(argv, cf) {
         		created: s.created_at,
         		status_id: status.id,
         		account: account.acct,
-        		url: status.url
+        		url: status.url,
+        		in_reply_to_id: status.in_reply_to_id
     		};
     	});
 	const newmentions = mentions.filter((m) => !oldids.includes(m.id));
 	for (const mention of newmentions) {
-    	    console.log(`new mention ${mention.id}`);
-    	    const reply = {
-        	    id: mention.status_id,
-        	    account: `@${mention.account}`
-    	    };
-    	    
-    	    post(argv, cf, reply);
+    	    if( mention.in_reply_to_id ) {
+        	    console.log(`won't reply to ${mention.id} as it's a reply to ${mention.in_reply_to_id}`);
+    	    } else {
+    	    	console.log(`new mention ${mention.id}`);
+        	    const reply = {
+            	    	id: mention.status_id,
+            	    	account: `@${mention.account}`
+        	    };
+        	    
+    	    	post(argv, cf, reply);
+    	    }
 	}
         if( !argv.n ) {
 		await promises.writeFile(cf.mentions, JSON.stringify(mentions, null, 4));