diff --git a/Library/Homebrew/tap_migrations.rb b/Library/Homebrew/tap_migrations.rb
index 5cebbf7295..1f2ee106f4 100644
--- a/Library/Homebrew/tap_migrations.rb
+++ b/Library/Homebrew/tap_migrations.rb
@@ -92,7 +92,7 @@ TAP_MIGRATIONS = {
   "graylog2-server" => "homebrew/boneyard",
   "gromacs" => "homebrew/science",
   "gsmartcontrol" => "homebrew/gui",
-  "gtk-chtheme" => "homebrew/x11",
+  "gtk-chtheme" => "homebrew/gui",
   "gtkglarea" => "homebrew/boneyard",
   "gtksourceviewmm" => "homebrew/x11",
   "gtksourceviewmm3" => "homebrew/x11",