diff --git a/lib/makefile b/lib/makefile
index 6348347..451ad18 100644
--- a/lib/makefile
+++ b/lib/makefile
@@ -1,6 +1,6 @@
 FREEC=gcc -O2 -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -I ../Include -c 
 PARTIAL=-r
-OBJS=	string.o vgatxt.o 
+OBJS=	memory.o port.o vgatxt.o 
 
 all: makeall
 
@@ -10,7 +10,10 @@ makeall: $(OBJS)
 vgatxt.o:vgatxt.c 
 	$(FREEC) $^
 
-string.o:string.c 
+memory.o:memory.c 
+	$(FREEC) $^
+
+port.o:port.c 
 	$(FREEC) $^
 clean:
 	rm -f *.o