diff --git a/sysdeps/unix/sysv/linux/alpha/mmap64.c b/sysdeps/unix/sysv/linux/alpha/mmap64.c
new file mode 100644
index 0000000000..0dbd384a6a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/mmap64.c
@@ -0,0 +1 @@
+/* mmap64 is the same as mmap. */