diff --git a/libc/arch-x86/bionic/syscall.S b/libc/arch-x86/bionic/syscall.S
index 3cca85c..8370f0b 100644
--- a/libc/arch-x86/bionic/syscall.S
+++ b/libc/arch-x86/bionic/syscall.S
@@ -32,7 +32,7 @@
 
     int     $0x80
 
-    cmpl    $-129, %eax
+    cmpl    $-4095, %eax
     jb      1f
     negl    %eax
     pushl   %eax