diff --git a/bin/muse-chat-api.py b/bin/muse-chat-api.py
index e64ab2e..4860fdf 100755
--- a/bin/muse-chat-api.py
+++ b/bin/muse-chat-api.py
@@ -207,14 +207,26 @@ def cmd_sidechat_use(ws, chat_id):
     print(f"Navigated to: {result}")
 
 def cmd_sidechat_main(ws):
-    """Navigate back to main chat."""
-    ws.send(json.dumps({
-        "id": 1, "method": "Page.navigate",
-        "params": {"url": "https://muse.ai/"}
-    }))
-    json.loads(ws.recv())
-    time.sleep(5)
-    print("Back to main chat")
+    """Navigate back to main chat by clicking the Main chat button."""
+    # Do NOT navigate to https://muse.ai/ (landing page) - it restores the
+    # last-viewed chat which may be a side chat. Click Main chat instead.
+    js = (
+        "(async()=>{"
+        "const ob=[...document.querySelectorAll('button')].find("
+        "b=>b.textContent.includes('Open chat and side chats'));"
+        "if(ob)ob.click();"
+        "await new Promise(r=>setTimeout(r,2000));"
+        "const els=[...document.querySelectorAll('*')];"
+        "const cands=els.filter(e=>e.textContent&&e.textContent.trim()==='Main chat');"
+        "const el=cands[0];"
+        "if(!el)return 'NOTFOUND';"
+        "el.click();"
+        "await new Promise(r=>setTimeout(r,4000));"
+        "return window.location.href;"
+        "})()"
+    )
+    result = ev(ws, js, True)
+    print(f"Back to main chat: {result}")
 
 def cmd_sidechat_list(ws):
     """List side chats via DOM."""