--- a/src/Makefile	Sat Mar 22 16:25:49 2014 +0100
+++ b/src/Makefile	Sat Mar 22 17:23:07 2014 +0100
@@ -35,6 +35,13 @@
 SRC += client.c
 SRC += game.c
 
+SRC += rules/pawn.c
+SRC += rules/rook.c
+SRC += rules/knight.c
+SRC += rules/bishop.c
+SRC += rules/queen.c
+SRC += rules/king.c
+
 OBJ = $(SRC:%.c=../build/%$(OBJ_EXT))
 
 all: $(OBJ)