diff --git a/src/postprocessing/map.py b/src/postprocessing/map.py
index 21dbe39..2c13ee4 100644
--- a/src/postprocessing/map.py
+++ b/src/postprocessing/map.py
@@ -773,7 +773,7 @@ class ContentMapper:
         print(f"  有效块: {len(tasks)}")
 
         if len(tasks) <= 1:
-            return self._local_krige_block(tasks[0])
+            return self._local_krige_block(*tasks[0])
 
         print(f"  启动 {min(n_workers, len(tasks))} 个 worker 进程...")
         with multiprocessing.Pool(processes=min(n_workers, len(tasks))) as pool: