diff --git a/lib/Hopscotch.pm b/lib/Hopscotch.pm
index ff9df3a..87488c2 100644
--- a/lib/Hopscotch.pm
+++ b/lib/Hopscotch.pm
@@ -75,6 +75,7 @@ my %VALID_CONTENT_TYPES = map { $_ => 1 } qw(
     image/x-xbitmap
     image/x-xpixmap
     image/x-xwindowdump
+    image/x-icon
 );
 
 sub request_headers {