diff --git a/pkgs/applications/version-management/rcs/default.nix b/pkgs/applications/version-management/rcs/default.nix
index d46a67a8601e..6982bd43b263 100644
--- a/pkgs/applications/version-management/rcs/default.nix
+++ b/pkgs/applications/version-management/rcs/default.nix
@@ -9,6 +9,14 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-Q93+EHJKi4XiRo9kA7YABzcYbwHmDgvWL95p2EIjTMU=";
   };
 
+  patches = [
+    # glibc 2.34 compat
+    (fetchpatch {
+      url = "https://src.fedoraproject.org/rpms/rcs/raw/f8e07cd37f4abfb36e37d41852bb8f9e234d3fb1/f/rcs-5.10.0-SIGSTKSZ.patch";
+      sha256 = "sha256-mc6Uye9mdEsLBcOnf1m1TUb1BV0ncNU//iKBpLGBjho=";
+    })
+  ];
+
   ac_cv_path_ED = "${ed}/bin/ed";
   DIFF = "${diffutils}/bin/diff";
   DIFF3 = "${diffutils}/bin/diff3";