diff --git a/src/core/audit.py b/src/core/audit.py
index 7529f69..0a86fc5 100644
--- a/src/core/audit.py
+++ b/src/core/audit.py
@@ -1,14 +1,18 @@
 import logging
+import asyncio
 from src.core.base import MigrationContext
 
 logger = logging.getLogger(__name__)
 
+# Shared lock to prevent concurrent audit channel setup across different context instances
+_setup_lock = asyncio.Lock()
+
 async def log_audit_event(context: MigrationContext, title: str, description: str, files: list[dict] | None = None) -> None:
     """
     Logs an event by sending a summary to the `#reaper-logs` audit channel.
     If the channel does not exist, it will dynamically create it.
     """
-    async with context._audit_lock:
+    async with _setup_lock:
         # 1. Initialize or Validate channel
         channel_id = context.state.audit_log_channel
         
diff --git a/src/core/base.py b/src/core/base.py
index ee7b56d..87086b1 100644
--- a/src/core/base.py
+++ b/src/core/base.py
@@ -21,7 +21,6 @@ class MigrationContext:
         # If caller didn't specify, fall back to config value
         self.target_platform = target_platform or config.target_platform or "fluxer"
         self.state = MigrationState()
-        self._audit_lock = asyncio.Lock()
         
         # Select the appropriate source reader
         if source_mode == "backup":