diff --git a/bar_filler_bar.go b/bar_filler_bar.go
index dc714f0..b63e5e1 100644
--- a/bar_filler_bar.go
+++ b/bar_filler_bar.go
@@ -1,6 +1,7 @@
 package mpb
 
 import (
+	"bytes"
 	"io"
 	"unicode/utf8"
 
@@ -152,6 +153,13 @@
 		index++
 	}
 
+	if index != len(bb) {
+		buf := new(bytes.Buffer)
+		s.flush(buf, space, bb[:index])
+		io.WriteString(w, runewidth.Truncate(buf.String(), width, "!"))
+		return
+	}
+
 	s.flush(w, space, bb)
 }