diff --git a/libsrc/atari/Makefile b/libsrc/atari/Makefile
index cabe31f35..23cf02e66 100644
--- a/libsrc/atari/Makefile
+++ b/libsrc/atari/Makefile
@@ -20,7 +20,7 @@ C_OBJS =
 S_OBJS = crt0.o kbhit.o conio.o clrscr.o cputc.o ctype.o chline.o cvline.o \
 	 color.o gotoxy.o cclear.o revers.o readjoy.o break.o where.o write.o \
 	 gotox.o gotoy.o savevec.o rwcommon.o cgetc.o read.o getargs.o close.o \
-	 open.o oserror.o fdtable.o setcolor.o
+	 open.o oserror.o fdtable.o setcolor.o scroll.o mul40.o
 
 all:	$(C_OBJS) $(S_OBJS)