diff --git a/libc/arch-arm/syscalls/dup2.S b/libc/arch-arm/syscalls/dup2.S
index 1ced458..ed346d9 100644
--- a/libc/arch-arm/syscalls/dup2.S
+++ b/libc/arch-arm/syscalls/dup2.S
@@ -1,13 +1,8 @@
 /* autogenerated by gensyscalls.py */
+#include <machine/asm.h>
 #include <sys/linux-syscalls.h>
 
-    .text
-    .type dup2, #function
-    .globl dup2
-    .align 4
-    .fnstart
-
-dup2:
+ENTRY(dup2)
     .save   {r4, r7}
     stmfd   sp!, {r4, r7}
     ldr     r7, =__NR_dup2
@@ -16,4 +11,4 @@
     movs    r0, r0
     bxpl    lr
     b       __set_syscall_errno
-    .fnend
+END(dup2)