diff --git a/bar_filler_bar.go b/bar_filler_bar.go
index ddb132a..78bb12e 100644
--- a/bar_filler_bar.go
+++ b/bar_filler_bar.go
@@ -18,7 +18,7 @@
 	components
 )
 
-var defaultBarStyle = [...]string{"[", "]", "+", "=", ">", "-"}
+var defaultBarStyle = [components]string{"[", "]", "+", "=", ">", "-"}
 
 // BarStyleComposer interface.
 type BarStyleComposer interface {