diff --git a/pkgs/by-name/rd/rdfind/package.nix b/pkgs/by-name/rd/rdfind/package.nix
index 107fc932af99..a88ebc058953 100644
--- a/pkgs/by-name/rd/rdfind/package.nix
+++ b/pkgs/by-name/rd/rdfind/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchurl,
+  autoreconfHook,
   nettle,
 }:
 
@@ -14,6 +15,11 @@ stdenv.mkDerivation (finalAttrs: {
     sha256 = "sha256-eMRjFS4dnk/Rv+uDuckt9ef8TF+Tx9Qm+x9++ivk3yk=";
   };
 
+  # the built-in configure script was generated by autoconf 2.72 and
+  # passes -std=gnu++11 when using gcc 16 instead of the intended c++20.
+  # autoconf 2.73 fixes this, so we autoreconf to avoid this issue.
+  nativeBuildInputs = [ autoreconfHook ];
+
   buildInputs = [ nettle ];
 
   meta = {