diff --git a/src/Makefile b/src/Makefile
index d18c15a..e7816c2 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -27,7 +27,7 @@ else
 endif
 PACKHEX=$(MIPS_HOME)/tools/packhex
 
-LIBS=-lm -lsys
+LIBS=-lm -lc -lsys
 
 AS=mipsel-elf-as
 AR=mipsel-elf-ar
@@ -65,6 +65,14 @@ hello.elf: hello.c libsys.a
 	$(FLASHGEN) $@.bin $(ENDIAN_FLAGS)
 	cat $@.srec | $(PACKHEX) > $@.pack
 
+hello_sim.elf: hello.c libsys_sim.a
+	$(CC) $(CFLAGS) -o $@ -Os hello.c -lsys_sim >$@.map
+	$(OBJDUMP) -d $@ > $@.dis
+	$(OBJCOPY) $@ -O binary $@.bin
+	$(OBJCOPY) -O srec $@ $@.srec
+	$(FLASHGEN) $@.bin $(ENDIAN_FLAGS)
+	cat $@.srec | $(PACKHEX) > $@.pack
+
 blittertest.elf: blittertest.c libsys.a
 	$(CC) $(CFLAGS) -o $@ -Os blittertest.c $(LIBS) >$@.map
 	$(OBJDUMP) -d $@ > $@.dis