diff --git a/home/x/i3bar.nix b/home/x/i3bar.nix
index cf678e2..a6f6bd5 100644
--- a/home/x/i3bar.nix
+++ b/home/x/i3bar.nix
@@ -33,6 +33,7 @@ in
             {
               block = "cpu";
               interval = 1;
+              format = "{barchart}";
             }
             {
               block = "temperature";