diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index 31eb930..11573de 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -130,6 +130,8 @@
 syscall_src += arch-x86/syscalls/lremovexattr.S
 syscall_src += arch-x86/syscalls/__statfs64.S
 syscall_src += arch-x86/syscalls/unshare.S
+syscall_src += arch-x86/syscalls/swapon.S
+syscall_src += arch-x86/syscalls/swapoff.S
 syscall_src += arch-x86/syscalls/pause.S
 syscall_src += arch-x86/syscalls/gettimeofday.S
 syscall_src += arch-x86/syscalls/settimeofday.S
diff --git a/libc/arch-x86/syscalls/swapoff.S b/libc/arch-x86/syscalls/swapoff.S
new file mode 100644
index 0000000..f2d6ddb
--- /dev/null
+++ b/libc/arch-x86/syscalls/swapoff.S
@@ -0,0 +1,21 @@
+/* autogenerated by gensyscalls.py */
+#include <linux/err.h>
+#include <machine/asm.h>
+#include <asm/unistd.h>
+
+ENTRY(swapoff)
+    pushl   %ebx
+    mov     8(%esp), %ebx
+    movl    $__NR_swapoff, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ebx
+    ret
+END(swapoff)
diff --git a/libc/arch-x86/syscalls/swapon.S b/libc/arch-x86/syscalls/swapon.S
new file mode 100644
index 0000000..08602fb
--- /dev/null
+++ b/libc/arch-x86/syscalls/swapon.S
@@ -0,0 +1,24 @@
+/* autogenerated by gensyscalls.py */
+#include <linux/err.h>
+#include <machine/asm.h>
+#include <asm/unistd.h>
+
+ENTRY(swapon)
+    pushl   %ebx
+    pushl   %ecx
+    mov     12(%esp), %ebx
+    mov     16(%esp), %ecx
+    movl    $__NR_swapon, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %ecx
+    popl    %ebx
+    ret
+END(swapon)