diff --git a/pkgs/by-name/ac/acct/package.nix b/pkgs/by-name/ac/acct/package.nix
index 8fb0cb755837..6457cb539a98 100644
--- a/pkgs/by-name/ac/acct/package.nix
+++ b/pkgs/by-name/ac/acct/package.nix
@@ -21,6 +21,12 @@ stdenv.mkDerivation rec {
       url = "https://src.fedoraproject.org/rpms/psacct/raw/rawhide/f/psacct-6.6.4-sprintf-buffer-overflow.patch";
       hash = "sha256-l74tLIuhpXj+dIA7uAY9L0qMjQ2SbDdc+vjHMyVouFc=";
     })
+    # fix build with C23
+    #    error: passing argument 4 of 'qsort' from incompatible pointer type
+    (fetchpatch2 {
+      url = "https://salsa.debian.org/abower/acct/-/raw/7aeb2192d729bcd4583a75765add28c65a7fcf47/debian/patches/Fix-FTBFS-with-C23.patch";
+      hash = "sha256-q1LtmhYopgSWIzIoONbKjgigIBU+LPvSvtUM3iL36c0=";
+    })
   ];
 
   meta = {