diff --git a/pkgs/development/web/kore/default.nix b/pkgs/development/web/kore/default.nix
index 878737ce706f..13caf0e781fc 100644
--- a/pkgs/development/web/kore/default.nix
+++ b/pkgs/development/web/kore/default.nix
@@ -1,5 +1,6 @@
 { lib, stdenv, fetchFromGitHub, openssl, curl, postgresql, yajl }:
 
+
 stdenv.mkDerivation rec {
   pname = "kore";
   version = "4.2.3";
@@ -27,9 +28,14 @@ stdenv.mkDerivation rec {
     make platform.h
   '';
 
-  # added to fix build w/gcc7 and clang5
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isGNU "-Wno-error=pointer-compare"
-    + lib.optionalString stdenv.cc.isClang " -Wno-error=unknown-warning-option";
+  env.NIX_CFLAGS_COMPILE = toString ([
+    "-Wno-error=deprecated-declarations"
+  ] ++ lib.optionals stdenv.cc.isGNU [
+    "-Wno-error=pointer-compare"
+    "-Wno-error=discarded-qualifiers"
+  ] ++ lib.optionals stdenv.cc.isClang [
+    "-Wno-error=incompatible-pointer-types-discards-qualifiers"
+  ]);
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8989e3257c22..20ee62ed225d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9785,9 +9785,7 @@ with pkgs;
 
   kool = callPackage ../development/tools/misc/kool { };
 
-  kore = callPackage ../development/web/kore {
-    openssl = openssl_1_1;
-  };
+  kore = callPackage ../development/web/kore { };
 
   krakenx = callPackage ../tools/system/krakenx { };