diff --git a/libc/include/fcntl.h b/libc/include/fcntl.h
index 87c8481..db56ce3 100644
--- a/libc/include/fcntl.h
+++ b/libc/include/fcntl.h
@@ -39,14 +39,7 @@
 __BEGIN_DECLS
 
 #ifdef __LP64__
-/* LP64 kernels don't have flock64 because their flock is 64-bit. */
-struct flock64 {
-  short l_type;
-  short l_whence;
-  off64_t l_start;
-  off64_t l_len;
-  pid_t l_pid;
-};
+/* LP64 kernels don't have F_*64 defines because their flock is 64-bit. */
 #define F_GETLK64  F_GETLK
 #define F_SETLK64  F_SETLK
 #define F_SETLKW64 F_SETLKW
diff --git a/libc/include/sys/glibc-syscalls.h b/libc/include/sys/glibc-syscalls.h
index 459ee78..b7d9054 100644
--- a/libc/include/sys/glibc-syscalls.h
+++ b/libc/include/sys/glibc-syscalls.h
@@ -203,6 +203,7 @@
 #define SYS_removexattr __NR_removexattr
 #define SYS_rename __NR_rename
 #define SYS_renameat __NR_renameat
+#define SYS_renameat2 __NR_renameat2
 #define SYS_request_key __NR_request_key
 #define SYS_restart_syscall __NR_restart_syscall
 #define SYS_rmdir __NR_rmdir
@@ -533,6 +534,7 @@
 #define SYS_removexattr __NR_removexattr
 #define SYS_rename __NR_rename
 #define SYS_renameat __NR_renameat
+#define SYS_renameat2 __NR_renameat2
 #define SYS_request_key __NR_request_key
 #define SYS_restart_syscall __NR_restart_syscall
 #define SYS_rmdir __NR_rmdir
@@ -888,6 +890,7 @@
 #define SYS_removexattr __NR_removexattr
 #define SYS_rename __NR_rename
 #define SYS_renameat __NR_renameat
+#define SYS_renameat2 __NR_renameat2
 #define SYS_request_key __NR_request_key
 #define SYS_reserved177 __NR_reserved177
 #define SYS_reserved193 __NR_reserved193
@@ -1250,6 +1253,7 @@
 #define SYS_removexattr __NR_removexattr
 #define SYS_rename __NR_rename
 #define SYS_renameat __NR_renameat
+#define SYS_renameat2 __NR_renameat2
 #define SYS_request_key __NR_request_key
 #define SYS_restart_syscall __NR_restart_syscall
 #define SYS_rmdir __NR_rmdir
@@ -1580,6 +1584,7 @@
 #define SYS_removexattr __NR_removexattr
 #define SYS_rename __NR_rename
 #define SYS_renameat __NR_renameat
+#define SYS_renameat2 __NR_renameat2
 #define SYS_request_key __NR_request_key
 #define SYS_restart_syscall __NR_restart_syscall
 #define SYS_rmdir __NR_rmdir