diff --git a/libc/include/bits/glibc-syscalls.h b/libc/include/bits/glibc-syscalls.h
index 71e67a3..1decafd 100644
--- a/libc/include/bits/glibc-syscalls.h
+++ b/libc/include/bits/glibc-syscalls.h
@@ -120,6 +120,9 @@
 #if defined(__NR_close)
   #define SYS_close __NR_close
 #endif
+#if defined(__NR_close_range)
+  #define SYS_close_range __NR_close_range
+#endif
 #if defined(__NR_connect)
   #define SYS_connect __NR_connect
 #endif