diff --git a/core/rawdb/ancient_scheme.go b/core/rawdb/ancient_scheme.go
index 628dde3f46..2f50696300 100644
--- a/core/rawdb/ancient_scheme.go
+++ b/core/rawdb/ancient_scheme.go
@@ -49,7 +49,7 @@ var chainFreezerTableConfigs = map[string]freezerTableConfig{
 	ChainFreezerHashTable:       {noSnappy: true, prunable: false},
 	ChainFreezerBodiesTable:     {noSnappy: false, prunable: true},
 	ChainFreezerReceiptTable:    {noSnappy: false, prunable: true},
-	ChainFreezerDifficultyTable: {noSnappy: false, prunable: true},
+	ChainFreezerDifficultyTable: {noSnappy: true, prunable: true},
 	freezerBorReceiptTable:      {noSnappy: false, prunable: true},
 }