diff --git a/widgets/compose.go b/widgets/compose.go
index 7233d30..69a2dcc 100644
--- a/widgets/compose.go
+++ b/widgets/compose.go
@@ -773,11 +773,11 @@ func (he *headerEditor) setValue(val string) {
 func (he *headerEditor) Draw(ctx *ui.Context) {
 	name := textproto.CanonicalMIMEHeaderKey(he.name)
 	// Extra character to put a blank cell between the header and the input
-	size := runewidth.StringWidth(name) + 1
+	size := runewidth.StringWidth(name+":") + 1
 	defaultStyle := he.uiConfig.GetStyle(config.STYLE_DEFAULT)
 	headerStyle := he.uiConfig.GetStyle(config.STYLE_HEADER)
 	ctx.Fill(0, 0, size, ctx.Height(), ' ', defaultStyle)
-	ctx.Printf(0, 0, headerStyle, "%s", name)
+	ctx.Printf(0, 0, headerStyle, "%s:", name)
 	he.input.Draw(ctx.Subcontext(size, 0, ctx.Width()-size, 1))
 }
 
diff --git a/widgets/msgviewer.go b/widgets/msgviewer.go
index b1decd5..fc4529c 100644
--- a/widgets/msgviewer.go
+++ b/widgets/msgviewer.go
@@ -731,7 +731,7 @@ type HeaderView struct {
 
 func (hv *HeaderView) Draw(ctx *ui.Context) {
 	name := hv.Name
-	size := runewidth.StringWidth(name)
+	size := runewidth.StringWidth(name + ":")
 	lim := ctx.Width() - size - 1
 	value := runewidth.Truncate(" "+hv.Value, lim, "…")
 
@@ -744,7 +744,7 @@ func (hv *HeaderView) Draw(ctx *ui.Context) {
 	}
 
 	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', vstyle)
-	ctx.Printf(0, 0, hstyle, "%s", name)
+	ctx.Printf(0, 0, hstyle, "%s:", name)
 	ctx.Printf(size, 0, vstyle, "%s", value)
 }