1 files changed, 1 insertions, 1 deletions
diff --git a/pow/block.go b/pow/block.go
index 4759e19fb..62df2b5ff 100644
--- a/pow/block.go
+++ b/pow/block.go
@@ -3,7 +3,7 @@ package pow
 import "math/big"
 
 type Block interface {
-	Diff() *big.Int
+	Difficulty() *big.Int
 	HashNoNonce() []byte
 	N() []byte
 }