diff --git a/.gitignore b/.gitignore
index c24dfb9c4..f8b38d4be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,6 @@ dependency-graph.png
 *.synctex.gz
 contract_tests/*
 app.test
+
+mytestnet
+_build
diff --git a/cmd/canined/root.go b/cmd/canined/root.go
index 040c44eec..052693fda 100644
--- a/cmd/canined/root.go
+++ b/cmd/canined/root.go
@@ -89,6 +89,7 @@ func NewRootCmd() (*cobra.Command, params.EncodingConfig) {
 	}
 
 	initRootCmd(rootCmd, encodingConfig)
+	rootCmd.PersistentFlags().String(flags.FlagChainID, "", "The network chain ID")
 
 	return rootCmd, encodingConfig
 }
@@ -174,6 +175,7 @@ func txCommand() *cobra.Command {
 	)
 
 	app.ModuleBasics.AddTxCommands(cmd)
+	cmd.PersistentFlags().String(flags.FlagChainID, "", "The network chain ID")
 	return cmd
 }