diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index a40a31caf9294..087b1fc10c586 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -181,6 +181,7 @@ AT_SECURE
 AT_SYMLINK_FOLLOW
 AT_SYMLINK_NOFOLLOW
 AT_UID
+AT_SYSINFO_EHDR
 B1000000
 B1152000
 B1500000
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index 947aca87bc1c4..743927e5172f2 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -1583,6 +1583,10 @@ pub const AT_HWCAP2: ::c_ulong = 26;
 
 pub const AT_EXECFN: ::c_ulong = 31;
 
+// defined in arch/<arch>/include/uapi/asm/auxvec.h but has the same value
+// wherever it is defined.
+pub const AT_SYSINFO_EHDR: ::c_ulong = 33;
+
 pub const GLOB_ERR: ::c_int = 1 << 0;
 pub const GLOB_MARK: ::c_int = 1 << 1;
 pub const GLOB_NOSORT: ::c_int = 1 << 2;