diff --git a/core/rawdb/schema.go b/core/rawdb/schema.go
index a99c8cd5f..201474335 100644
--- a/core/rawdb/schema.go
+++ b/core/rawdb/schema.go
@@ -74,9 +74,9 @@ var (
 	cxReceiptSpentPrefix             = []byte("cxReceiptSpent")             // prefix for indicator of unspent of cxReceiptsProof
 	cxReceiptUnspentCheckpointPrefix = []byte("cxReceiptUnspentCheckpoint") // prefix for cxReceiptsProof unspent checkpoint
 
-	validatorPrefix         = []byte("validator")            // prefix for staking validator information
-	validatorSnapshotPrefix = []byte("validator-snapshot")   // prefix for staking validator's snapshot information
-	validatorStatsPrefix    = []byte("validator-stats")      // prefix for staking validator's stats information
+	validatorPrefix         = []byte("validator")             // prefix for staking validator information
+	validatorSnapshotPrefix = []byte("validator-snapshot")    // prefix for staking validator's snapshot information
+	validatorStatsPrefix    = []byte("validator-stats")       // prefix for staking validator's stats information
 	validatorListKey        = []byte("validator-list")        // key for all validators list
 	activeValidatorListKey  = []byte("active-validator-list") // key for active validators list