diff --git a/core/rawdb/schema.go b/core/rawdb/schema.go
index 04b5d0d6d..d1f1df9e4 100644
--- a/core/rawdb/schema.go
+++ b/core/rawdb/schema.go
@@ -262,6 +262,10 @@ func configKey(hash common.Hash) []byte {
 	return append(configPrefix, hash.Bytes()...)
 }
 
+func ConfigKey(hash common.Hash) []byte {
+	return configKey(hash)
+}
+
 // genesisStateSpecKey = genesisPrefix + hash
 func genesisStateSpecKey(hash common.Hash) []byte {
 	return append(genesisPrefix, hash.Bytes()...)