diff --git a/separator.go b/separator.go
index 1dcecb5..14ba1fd 100644
--- a/separator.go
+++ b/separator.go
@@ -4,11 +4,15 @@ import "git.tebibyte.media/tomo/tomo"
 import "git.tebibyte.media/tomo/tomo/theme"
 
 // Separator is a line for visually separating elements.
-type Separator tomo.Box
+type Separator struct {
+	tomo.Box
+}
 
-// NewSeparator creates a new text label.
-func NewSeparator () Separator {
-	this := Separator(tomo.NewBox())
+// NewSeparator creates a new separator line.
+func NewSeparator () *Separator {
+	this := &Separator {
+		Box: tomo.NewBox(),
+	}
 	theme.Apply(this, theme.R("objects", "Separator", ""))
 	return this
 }