diff --git a/params/protocol_params.go b/params/protocol_params.go
index 2cfed776e4..75e6f192c7 100644
--- a/params/protocol_params.go
+++ b/params/protocol_params.go
@@ -179,7 +179,6 @@ const (
 
 	HistoryServeWindow = 8192 // Number of blocks to serve historical block hashes for, EIP-2935.
 
-	WithdrawalSize  = 23        // size of a withdrawal
 	BlockRLPSizeCap = 8_388_608 // maximum size of an RLP-encoded block
 )