diff --git a/bar_test.go b/bar_test.go
index af8f4b4..3cb7981 100644
--- a/bar_test.go
+++ b/bar_test.go
@@ -38,7 +38,7 @@
 
 		p.Stop()
 
-		gotWidth := len(buf.Bytes())
+		gotWidth := utf8.RuneCount(buf.Bytes())
 		if gotWidth != tc.expected {
 			t.Errorf("%s: Expected width: %d, got: %d\n", k, tc.expected, gotWidth)
 		}
diff --git a/progress_test.go b/progress_test.go
index b81bbd2..4e4729f 100644
--- a/progress_test.go
+++ b/progress_test.go
@@ -45,23 +45,6 @@
 	gotWidth := utf8.RuneCount(buf.Bytes())
 	if gotWidth != wantWidth+1 { // +1 for new line
 		t.Errorf("Expected default width: %d, got: %d\n", wantWidth, gotWidth)
-	}
-}
-
-func TestInvalidWidth(t *testing.T) {
-	var buf bytes.Buffer
-	p := mpb.New(mpb.WithWidth(1), mpb.Output(&buf))
-	bar := p.AddBar(100, mpb.BarTrim())
-
-	for i := 0; i < 100; i++ {
-		bar.Incr(1)
-	}
-	p.Stop()
-
-	wantWidth := 80
-	gotWidth := utf8.RuneCount(buf.Bytes())
-	if gotWidth != wantWidth+1 { // +1 for new line
-		t.Errorf("Expected width: %d, got: %d\n", wantWidth, gotWidth)
 	}
 }