diff --git a/dvxdemo/Makefile b/dvxdemo/Makefile
index f30f183..b9c4d23 100644
--- a/dvxdemo/Makefile
+++ b/dvxdemo/Makefile
@@ -2,6 +2,8 @@
 
 DJGPP_PREFIX = $(HOME)/djgpp/djgpp
 CC           = $(DJGPP_PREFIX)/bin/i586-pc-msdosdjgpp-gcc
+EXE2COFF     = $(DJGPP_PREFIX)/i586-pc-msdosdjgpp/bin/exe2coff
+CWSDSTUB     = $(DJGPP_PREFIX)/i586-pc-msdosdjgpp/bin/CWSDSTUB.EXE
 CFLAGS       = -O2 -Wall -Wextra -march=i486 -mtune=i586 -I../dvx
 LDFLAGS      = -L../lib -ldvx -lm
 
@@ -22,6 +24,9 @@ lib:
 
 $(TARGET): $(OBJS) $(LIBDIR)/libdvx.a | $(BINDIR)
 	$(CC) $(CFLAGS) -o $@ $(OBJS) $(LDFLAGS)
+	$(EXE2COFF) $@
+	cat $(CWSDSTUB) $(BINDIR)/demo > $@
+	rm -f $(BINDIR)/demo
 
 $(OBJDIR)/%.o: %.c | $(OBJDIR)
 	$(CC) $(CFLAGS) -c -o $@ $<