diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h
index 27952b9..26dd9a2 100644
--- a/libc/include/sys/cdefs.h
+++ b/libc/include/sys/cdefs.h
@@ -245,6 +245,16 @@
 #define __RENAME_LDBL(rewrite,rewrite_api_level,regular_api_level) __RENAME(rewrite) __INTRODUCED_IN(rewrite_api_level)
 #endif
 
+/*
+ * On all architectures, `struct stat` == `struct stat64`, but LP32 didn't gain the *64 functions
+ * until API level 21.
+ */
+#if defined(__LP64__) || defined(__BIONIC_LP32_USE_STAT64)
+#define __RENAME_STAT64(rewrite,rewrite_api_level,regular_api_level) __INTRODUCED_IN(regular_api_level)
+#else
+#define __RENAME_STAT64(rewrite,rewrite_api_level,regular_api_level) __RENAME(rewrite) __INTRODUCED_IN(rewrite_api_level)
+#endif
+
 /* glibc compatibility. */
 #if defined(__LP64__)
 #define __WORDSIZE 64
diff --git a/libc/include/sys/stat.h b/libc/include/sys/stat.h
index 6fce0a5..84a5015 100644
--- a/libc/include/sys/stat.h
+++ b/libc/include/sys/stat.h
@@ -156,13 +156,13 @@
 int mkdir(const char* __path, mode_t __mode);
 
 int fstat(int __fd, struct stat* __buf);
-int fstat64(int __fd, struct stat64* __buf) __INTRODUCED_IN(21);
+int fstat64(int __fd, struct stat64* __buf) __RENAME_STAT64(fstat, 3, 21);
 int fstatat(int __dir_fd, const char* __path, struct stat* __buf, int __flags);
-int fstatat64(int __dir_fd, const char* __path, struct stat64* __buf, int __flags) __INTRODUCED_IN(21);
+int fstatat64(int __dir_fd, const char* __path, struct stat64* __buf, int __flags) __RENAME_STAT64(fstatat, 3, 21);
 int lstat(const char* __path, struct stat* __buf);
-int lstat64(const char* __path, struct stat64* __buf) __INTRODUCED_IN(21);
+int lstat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(lstat, 3, 21);
 int stat(const char* __path, struct stat* __buf);
-int stat64(const char* __path, struct stat64* __buf) __INTRODUCED_IN(21);
+int stat64(const char* __path, struct stat64* __buf) __RENAME_STAT64(stat, 3, 21);
 
 int mknod(const char* __path, mode_t __mode, dev_t __dev);
 mode_t umask(mode_t __mask);