diff --git a/std/elf.zig b/std/elf.zig
index d0ec5fb2ae14d7c78ba965cbd94e82bad0233a07..49f2f7d1373d6081d9eeecc34e214061a6f8219c 100644
--- a/std/elf.zig
+++ b/std/elf.zig
@@ -877,6 +877,11 @@ pub const Phdr = switch (@sizeOf(usize)) {
     8 => Elf64_Phdr,
     else => @compileError("expected pointer size of 32 or 64"),
 };
+pub const Dyn = switch (@sizeOf(usize)) {
+    4 => Elf32_Dyn,
+    8 => Elf64_Dyn,
+    else => @compileError("expected pointer size of 32 or 64"),
+};
 pub const Shdr = switch (@sizeOf(usize)) {
     4 => Elf32_Shdr,
     8 => Elf64_Shdr,