diff --git a/games/tetris/Makefile b/games/tetris/Makefile
index 1ed2601..a2e8475 100644
--- a/games/tetris/Makefile
+++ b/games/tetris/Makefile
@@ -3,6 +3,6 @@ TOPDIR = ../..
 
 include $(TOPDIR)/defaults.mk
 
-SRC = piece.c playfield.c view.c logic.c input.c
+SRC = piece.c playfield.c view.c logic.c input.c bast.c
 
 include $(TOPDIR)/rules.mk