diff --git a/app/main.py b/app/main.py
index 12183d6..5be4e12 100644
--- a/app/main.py
+++ b/app/main.py
@@ -973,20 +973,33 @@ async def sync_matrix_space() -> dict:
             local_mxid = f"@{username}:inference.coop"
             if local_mxid == ext_mxid:
                 continue  # dashboard MXID IS the local account — nothing to retire
-            if local_mxid in joined:
-                for room in [MATRIX_SPACE_ID] + ([MATRIX_GENERAL_ROOM] if MATRIX_GENERAL_ROOM else []):
-                    import urllib.parse
-                    enc_room = urllib.parse.quote(room, safe="")
+            # Retire BOTH joined and invite-state local accounts: a stale invite
+            # leaves the local account visible in the user directory and
+            # accept-able from a lingering client notification, which defeats
+            # the one-identity rule. Revoke invites via state-event membership
+            # (kick 403s on invite-state users).
+            for room in [MATRIX_SPACE_ID] + ([MATRIX_GENERAL_ROOM] if MATRIX_GENERAL_ROOM else []):
+                enc_room = urllib.parse.quote(room, safe="")
+                if local_mxid in joined:
                     await client.post(
                         f"{MATRIX_HOMESERVER}/_matrix/client/v3/rooms/{enc_room}/kick",
                         headers=H,
                         json={"user_id": local_mxid,
                               "reason": f"This co-op account is superseded by {ext_mxid} (set on your dashboard)"},
                     )
-                retired += 1
-                logger.info("Matrix sync: retired local account %s (member uses %s)", local_mxid, ext_mxid)
+                    retired += 1
+                    logger.info("Matrix sync: retired local account %s (member uses %s)", local_mxid, ext_mxid)
+                elif local_mxid in invited:
+                    await client.put(
+                        f"{MATRIX_HOMESERVER}/_matrix/client/v3/rooms/{enc_room}/state/m.room.member/{urllib.parse.quote(local_mxid, safe='')}",
+                        headers=H,
+                        json={"membership": "leave",
+                              "reason": f"This co-op account is superseded by {ext_mxid} (set on your dashboard)"},
+                    )
+                    retired += 1
+                    logger.info("Matrix sync: revoked stale invite for local account %s (member uses %s)", local_mxid, ext_mxid)
         if retired:
-            logger.info("Matrix sync: retired %s local account(s)", retired)
+            logger.info("Matrix sync: retired %s local account(s)/invite(s)", retired)
     return {"invited": invited_count}