diff --git a/pkgs/by-name/of/offrss/package.nix b/pkgs/by-name/of/offrss/package.nix
index 4bc3eb3a8094..0d60b2d6e3c7 100644
--- a/pkgs/by-name/of/offrss/package.nix
+++ b/pkgs/by-name/of/offrss/package.nix
@@ -8,7 +8,7 @@
   libiconv,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "offrss";
   version = "1.3";
 
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   # Workaround build failure on -fno-common toolchains:
   #   ld: serve_pdf.o:offrss.h:75: multiple definition of `cgi_url_path';
   #     offrss.o:offrss.h:75: first defined here
-  env.NIX_CFLAGS_COMPILE = "-fcommon";
+  env.NIX_CFLAGS_COMPILE = "-fcommon -Wno-error=implicit-function-declaration";
 
   configurePhase =
     ''
@@ -43,16 +43,16 @@ stdenv.mkDerivation rec {
     '';
 
   src = fetchurl {
-    url = "http://vicerveza.homeunix.net/~viric/soft/offrss/offrss-${version}.tar.gz";
-    sha256 = "1akw1x84jj2m9z60cvlvmz21qwlaywmw18pl7lgp3bj5nw6250p6";
+    url = "http://vicerveza.homeunix.net/~viric/soft/offrss/offrss-${finalAttrs.version}.tar.gz";
+    hash = "sha256-5oIiDLdFrnEfPfSiwCv3inIcxK+bbgbMT1VISVAPfKo=";
   };
 
-  meta = with lib; {
+  meta = {
     homepage = "http://vicerveza.homeunix.net/~viric/cgi-bin/offrss";
     description = "Offline RSS/Atom reader";
-    license = licenses.agpl3Plus;
+    license = lib.licenses.agpl3Plus;
     maintainers = [ ];
     platforms = lib.platforms.linux;
     mainProgram = "offrss";
   };
-}
+})