diff --git a/cmd/sync.go b/cmd/sync.go
index 6be8d843..42a2e111 100644
--- a/cmd/sync.go
+++ b/cmd/sync.go
@@ -21,7 +21,7 @@ var syncCmd = &cobra.Command{
 	Use:   "sync",
 	Short: "Syncs vulcanizedb with local ethereum node",
 	Long: `Syncs vulcanizedb with local ethereum node. 
-vulcanizedb sync --startingBlockNumber 0 --config public.toml
+vulcanizedb sync --starting-block-number 0 --config public.toml
 
 Expects ethereum node to be running and requires a .toml config: