diff --git a/hive/indexer/sync.py b/hive/indexer/sync.py
index a09974186de2dd2efe57b40522e012de2706f9a1..cbc1591c9047af2f980161f336663f77731a23f9 100644
--- a/hive/indexer/sync.py
+++ b/hive/indexer/sync.py
@@ -280,7 +280,7 @@ class Sync:
 
         Community.start_block = self._conf.get("community_start_block")
 
-        paths = self._conf.get("mock_block_data_path")
+        paths = self._conf.get("mock_block_data_path") or []
         for path in paths:
           self.load_mock_data(path)