diff --git a/commands/msg/modify-labels.go b/commands/msg/modify-labels.go
index d0a5d6f..02eed52 100644
--- a/commands/msg/modify-labels.go
+++ b/commands/msg/modify-labels.go
@@ -16,7 +16,7 @@ func init() {
 }
 
 func (ModifyLabels) Aliases() []string {
-	return []string{"modify-labels"}
+	return []string{"modify-labels", "tag"}
 }
 
 func (ModifyLabels) Complete(aerc *widgets.Aerc, args []string) []string {
diff --git a/doc/aerc.1.scd b/doc/aerc.1.scd
index 5898f21..3b771ea 100644
--- a/doc/aerc.1.scd
+++ b/doc/aerc.1.scd
@@ -242,6 +242,7 @@ message list, the message in the message viewer, etc).
 	Operates exactly like *flag*, defaulting to unsetting (disabling) flags.
 
 *modify-labels* <[+-]label>...
+*tag* <[+-]label>...
 	Modify message labels (e.g. notmuch tags). Labels prefixed with a '+' are
 	added, those prefixed with a '-' removed. As a convenience, labels without
 	either operand add the specified label.