diff --git a/data/Tupfile.lua b/data/Tupfile.lua
index 3a128db6b5..750a641715 100644
--- a/data/Tupfile.lua
+++ b/data/Tupfile.lua
@@ -482,6 +482,7 @@ tup.append_table(img_files, {
 })
 tup.append_table(extra_files, {
  {"kolibrios/emul/e80/e80", PROGS .. "/emulator/e80/trunk/e80"},
+ {"kolibrios/games/21days/", PROGS .. "/games/21days/21days"},
  {"kolibrios/games/heliothryx/", PROGS .. "/games/heliothryx/heliothryx"},
  {"kolibrios/games/2048/", PROGS .. "/games/2048/2048"},
  {"kolibrios/games/marblematch3/", PROGS .. "/games/marblematch3/marblematch3"},