diff --git a/pkgs/os-specific/darwin/skhd/default.nix b/pkgs/os-specific/darwin/skhd/default.nix
index fa6e1aa01e9f..f979f7ec020e 100644
--- a/pkgs/os-specific/darwin/skhd/default.nix
+++ b/pkgs/os-specific/darwin/skhd/default.nix
@@ -26,6 +26,8 @@ stdenv.mkDerivation (finalAttrs: {
     "BUILD_PATH=$(out)/bin"
   ];
 
+  env.NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";
+
   postInstall = ''
     mkdir -p $out/Library/LaunchDaemons
     cp ${./org.nixos.skhd.plist} $out/Library/LaunchDaemons/org.nixos.skhd.plist