diff --git a/libc/include/bits/glibc-syscalls.h b/libc/include/bits/glibc-syscalls.h
index 3b4b5bf..50817af 100644
--- a/libc/include/bits/glibc-syscalls.h
+++ b/libc/include/bits/glibc-syscalls.h
@@ -60,6 +60,9 @@
 #if defined(__NR_brk)
   #define SYS_brk __NR_brk
 #endif
+#if defined(__NR_cachestat)
+  #define SYS_cachestat __NR_cachestat
+#endif
 #if defined(__NR_capget)
   #define SYS_capget __NR_capget
 #endif