diff --git a/runoff.list b/runoff.list
index 3f7c5f2..5a8a2f9 100644
--- a/runoff.list
+++ b/runoff.list
@@ -66,8 +66,8 @@ timer.c
 
 # user-level
 initcode.S
-init.c
 usys.S
+init.c
 sh.c
 
 
diff --git a/usys.S b/usys.S
index 380cb91..2291b02 100644
--- a/usys.S
+++ b/usys.S
@@ -1,30 +1,30 @@
 #include "syscall.h"
 #include "traps.h"
 
-#define STUB(name) \
+#define SYSCALL(name) \
   .globl name; \
   name: \
     movl $SYS_ ## name, %eax; \
     int $T_SYSCALL; \
     ret
 
-STUB(fork)
-STUB(exit)
-STUB(wait)
-STUB(pipe)
-STUB(read)
-STUB(write)
-STUB(close)
-STUB(kill)
-STUB(exec)
-STUB(open)
-STUB(mknod)
-STUB(unlink)
-STUB(fstat)
-STUB(link)
-STUB(mkdir)
-STUB(chdir)
-STUB(dup)
-STUB(getpid)
-STUB(sbrk)
-STUB(sleep)
+SYSCALL(fork)
+SYSCALL(exit)
+SYSCALL(wait)
+SYSCALL(pipe)
+SYSCALL(read)
+SYSCALL(write)
+SYSCALL(close)
+SYSCALL(kill)
+SYSCALL(exec)
+SYSCALL(open)
+SYSCALL(mknod)
+SYSCALL(unlink)
+SYSCALL(fstat)
+SYSCALL(link)
+SYSCALL(mkdir)
+SYSCALL(chdir)
+SYSCALL(dup)
+SYSCALL(getpid)
+SYSCALL(sbrk)
+SYSCALL(sleep)