diff --git a/lib/std/elf.zig b/lib/std/elf.zig
index c74bd488dd..1e8f678b94 100644
--- a/lib/std/elf.zig
+++ b/lib/std/elf.zig
@@ -2181,6 +2181,7 @@ pub const R_RISCV = enum(u32) {
     R_RISCV_TLS_DTPREL64 = 9,
     R_RISCV_TLS_TPREL32 = 10,
     R_RISCV_TLS_TPREL64 = 11,
+    R_RISVC_TLSDESC = 12,
     R_RISCV_BRANCH = 16,
     R_RISCV_JAL = 17,
     R_RISCV_CALL = 18,
diff --git a/src/link/Elf/relocation.zig b/src/link/Elf/relocation.zig
index 10a7d25871..b7b0ecf2f5 100644
--- a/src/link/Elf/relocation.zig
+++ b/src/link/Elf/relocation.zig
@@ -64,6 +64,7 @@ const riscv64_relocs = Table(8, elf.R_RISCV, .{
     .{ .dtpmod, .R_RISCV_TLS_DTPMOD64 },
     .{ .dtpoff, .R_RISCV_TLS_DTPREL64 },
     .{ .tpoff, .R_RISCV_TLS_TPREL64 },
+    .{ .tlsdesc, .R_RISCV_TLSDESC },
 });
 
 pub fn decode(r_type: u32, cpu_arch: std.Target.Cpu.Arch) ?Kind {