diff --git a/doc/langref.html.in b/doc/langref.html.in
index 233e7799f..442e4ac52 100644
--- a/doc/langref.html.in
+++ b/doc/langref.html.in
@@ -2157,6 +2157,7 @@ test "allowzero" {
       against buffer overflow and overreads.
       </p>
       {#code_begin|exe_build_err#}
+      {#link_libc#}
 const std = @import("std");
 
 // This is also available as `std.c.printf`.