diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index b5271b4b4..c9d1a26d5 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -1123,7 +1123,7 @@ func (bc *Blockchain) isHardforkEnabled(hf *config.Hardfork, blockHeight uint32)
 	hfs := bc.config.Hardforks
 	if hf != nil {
 		start, ok := hfs[hf.String()]
-		if !ok || start < blockHeight {
+		if !ok || start > blockHeight {
 			return false
 		}
 	}