diff --git a/libc/arch-x86/syscalls/munmap.S b/libc/arch-x86/syscalls/munmap.S
index 878aae7..a7ef449 100644
--- a/libc/arch-x86/syscalls/munmap.S
+++ b/libc/arch-x86/syscalls/munmap.S
@@ -17,7 +17,7 @@
     jb      1f
     negl    %eax
     pushl   %eax
-    call    __set_errno
+    call    PIC_PLT(__set_errno)
     addl    $4, %esp
 1:
     popl    %ecx