diff --git a/Tupfile b/Tupfile
index e39d14d..27f7956 100644
--- a/Tupfile
+++ b/Tupfile
@@ -1,4 +1,4 @@
include_rules
: foreach *.md |> !html |>
-: favicon.png |> !tup_preserve |>
+: favicon.png |> convert %f -background transparent %o |> favicon.ico
diff --git a/templates/header.html b/templates/header.html
index b7af5e2..b9ff67d 100644
--- a/templates/header.html
+++ b/templates/header.html
@@ -1 +1 @@
-
+