diff --git a/bot/subcommand.go b/bot/subcommand.go
index eefc30c..f0ac732 100644
--- a/bot/subcommand.go
+++ b/bot/subcommand.go
@@ -265,6 +265,11 @@ func (sub *Subcommand) Help(indent string, hideAdmin bool) string {
 			commands += " " + underline(usage)
 		}
 
+		// Is the last argument trailing? If so, append ellipsis.
+		if cmd.Variadic {
+			commands += "..."
+		}
+
 		// Write the description if there's any.
 		if cmd.Description != "" {
 			commands += ": " + cmd.Description
diff --git a/bot/subcommand_test.go b/bot/subcommand_test.go
index 6f77905..6f32ea2 100644
--- a/bot/subcommand_test.go
+++ b/bot/subcommand_test.go
@@ -1,6 +1,8 @@
 package bot
 
-import "testing"
+import (
+	"testing"
+)
 
 func TestNewSubcommand(t *testing.T) {
 	_, err := NewSubcommand(&testc{})