diff --git a/Makefile b/Makefile
index 1e1a0a8..731cf57 100644
--- a/Makefile
+++ b/Makefile
@@ -49,22 +49,22 @@ bootblock : bootasm.S bootmain.c
 	$(OBJCOPY) -S -O binary bootblock.o bootblock
 	./sign.pl bootblock
 
-kernel : $(OBJS) bootother.S init
+kernel : $(OBJS) bootother.S _init
 	$(CC) -nostdinc -I. -c bootother.S
 	$(LD) -N -e start -Ttext 0x7000 -o bootother.out bootother.o
 	$(OBJCOPY) -S -O binary bootother.out bootother
 	$(OBJDUMP) -S bootother.o > bootother.asm
-	$(LD) -Ttext 0x100000 -e main0 -o kernel $(OBJS) -b binary bootother init
+	$(LD) -Ttext 0x100000 -e main0 -o kernel $(OBJS) -b binary bootother _init
 	$(OBJDUMP) -S kernel > kernel.asm
 
-tags: $(OBJS) bootother.S init
+tags: $(OBJS) bootother.S _init
 	etags *.S *.c
 
 PRINT =	\
 	runoff.list \
 	README\
 	types.h param.h defs.h x86.h asm.h elf.h mmu.h spinlock.h\
-	bootasm.S bootother.S main.c init.c spinlock.c\
+	bootasm.S bootother.S main.c _init.c spinlock.c\
 	proc.h proc.c setjmp.S kalloc.c\
 	syscall.h trapasm.S traps.h trap.c vectors.pl syscall.c sysproc.c\
 	buf.h dev.h fcntl.h stat.h file.h fs.h fsvar.h fd.c fs.c bio.c ide.c sysfile.c\
diff --git a/main.c b/main.c
index 2a6ab82..c18fc08 100644
--- a/main.c
+++ b/main.c
@@ -11,7 +11,7 @@
 #include "spinlock.h"
 
 extern char edata[], end[];
-extern uchar _binary_init_start[], _binary_init_size[];
+extern uchar _binary__init_start[], _binary__init_size[];
 
 void process0();
 
@@ -140,7 +140,7 @@ process0()
 
   p1 = copyproc(p0);
 
-  load_icode(p1, _binary_init_start, (uint) _binary_init_size);
+  load_icode(p1, _binary__init_start, (uint) _binary__init_size);
   p1->state = RUNNABLE;
 
   proc_wait();
@@ -166,9 +166,9 @@ load_icode(struct proc *p, uchar *binary, uint size)
     if(ph->type != ELF_PROG_LOAD)
       continue;
     if(ph->va + ph->memsz < ph->va)
-      panic("load_icode: overflow in elf header segment");
+      panic("load_icode: overflow in proghdr");
     if(ph->va + ph->memsz >= p->sz)
-      panic("load_icode: icode wants to be above UTOP");
+      panic("load_icode: icode too large");
 
     // Load/clear the segment
     memmove(p->mem + ph->va, binary + ph->offset, ph->filesz);