diff --git a/libc-test/build.rs b/libc-test/build.rs
index 16964b75e1d62..26b1c550de22c 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -1936,6 +1936,9 @@ fn test_android(target: &str) {
             // Added in API level 28, but some tests use level 24.
             "fread_unlocked" | "fwrite_unlocked" | "fgets_unlocked" | "fflush_unlocked" => true,
 
+            // Added in API level 28, but some tests use level 24.
+            "aligned_alloc" => true,
+
             // FIXME: bad function pointers:
             "isalnum" | "isalpha" | "iscntrl" | "isdigit" | "isgraph" | "islower" | "isprint"
             | "ispunct" | "isspace" | "isupper" | "isxdigit" | "isblank" | "tolower"
diff --git a/libc-test/semver/unix.txt b/libc-test/semver/unix.txt
index ac28806ab52e0..062d867b8530c 100644
--- a/libc-test/semver/unix.txt
+++ b/libc-test/semver/unix.txt
@@ -452,6 +452,7 @@ accept
 access
 addrinfo
 alarm
+aligned_alloc
 atexit
 atof
 atoi
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 8984e097b968c..7b39e4784f96d 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -896,6 +896,7 @@ extern "C" {
     pub fn pathconf(path: *const c_char, name: ::c_int) -> c_long;
     pub fn pipe(fds: *mut ::c_int) -> ::c_int;
     pub fn posix_memalign(memptr: *mut *mut ::c_void, align: ::size_t, size: ::size_t) -> ::c_int;
+    pub fn aligned_alloc(alignment: ::size_t, size: ::size_t) -> *mut ::c_void;
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "read$UNIX2003"