diff --git a/libc/arch-mips/syscalls.mk b/libc/arch-mips/syscalls.mk
index e141a65..6b72e70 100644
--- a/libc/arch-mips/syscalls.mk
+++ b/libc/arch-mips/syscalls.mk
@@ -24,6 +24,7 @@
 syscall_src += arch-mips/syscalls/__rt_sigtimedwait.S
 syscall_src += arch-mips/syscalls/__sched_getaffinity.S
 syscall_src += arch-mips/syscalls/__set_thread_area.S
+syscall_src += arch-mips/syscalls/__set_tid_address.S
 syscall_src += arch-mips/syscalls/__sigaction.S
 syscall_src += arch-mips/syscalls/__statfs64.S
 syscall_src += arch-mips/syscalls/__syslog.S
diff --git a/libc/arch-mips/syscalls/__set_tid_address.S b/libc/arch-mips/syscalls/__set_tid_address.S
new file mode 100644
index 0000000..4fcc82a
--- /dev/null
+++ b/libc/arch-mips/syscalls/__set_tid_address.S
@@ -0,0 +1,23 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <asm/unistd.h>
+    .text
+    .globl __set_tid_address
+    .align 4
+    .ent __set_tid_address
+
+__set_tid_address:
+    .set noreorder
+    .cpload $t9
+    li $v0, __NR_set_tid_address
+    syscall
+    bnez $a3, 1f
+    move $a0, $v0
+    j $ra
+    nop
+1:
+    la $t9,__set_errno
+    j $t9
+    nop
+    .set reorder
+    .end __set_tid_address