diff --git a/libc/arch-x86/bionic/clone.S b/libc/arch-x86/bionic/clone.S
index b9b0957..8abb7c8 100644
--- a/libc/arch-x86/bionic/clone.S
+++ b/libc/arch-x86/bionic/clone.S
@@ -22,6 +22,7 @@
         movl    %eax, -8(%ecx)
         movl    %ecx, -4(%ecx)
 
+        subl    $16, %ecx
         movl    $__NR_clone, %eax
         int     $0x80
         test    %eax, %eax
@@ -39,7 +40,6 @@
         # we're in the child thread now, call __thread_entry
         # with the appropriate arguments on the child stack
         # we already placed most of them
-        subl    $16, %esp
         jmp     __thread_entry
         hlt