diff --git a/src/cli/flags/repo.go b/src/cli/flags/repo.go
index 62e6e5a81..aff69ed6c 100644
--- a/src/cli/flags/repo.go
+++ b/src/cli/flags/repo.go
@@ -76,12 +76,16 @@ func AddCorsoPassphaseFlags(cmd *cobra.Command) {
 }
 
 // M365 flags
-func AddCorsoUpdatePassphraseFlags(cmd *cobra.Command) {
+func AddUpdatePassphraseFlags(cmd *cobra.Command, require bool) {
 	fs := cmd.Flags()
 	fs.StringVar(&NewPhasephraseFV,
 		NewPassphraseFN,
 		"",
 		"update Corso passphrase for repo")
+
+	if require {
+		cobra.CheckErr(cmd.MarkFlagRequired(NewPassphraseFN))
+	}
 }
 
 // ---------------------------------------------------------------------------
diff --git a/src/cli/repo/repo.go b/src/cli/repo/repo.go
index 1a7338b6e..7da0cb377 100644
--- a/src/cli/repo/repo.go
+++ b/src/cli/repo/repo.go
@@ -61,6 +61,8 @@ func AddCommands(cmd *cobra.Command) {
 	flags.AddMaintenanceUserFlag(maintenanceCmd)
 	flags.AddMaintenanceHostnameFlag(maintenanceCmd)
 
+	flags.AddUpdatePassphraseFlags(updatePassphraseCmd, true)
+
 	for _, addRepoTo := range repoCommands {
 		addRepoTo(initCmd)
 		addRepoTo(connectCmd)