diff --git a/pkgs/applications/audio/deadbeef/plugins/lyricbar.nix b/pkgs/applications/audio/deadbeef/plugins/lyricbar.nix
index ca704d100a12..8c2e9b34f650 100644
--- a/pkgs/applications/audio/deadbeef/plugins/lyricbar.nix
+++ b/pkgs/applications/audio/deadbeef/plugins/lyricbar.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
     libxmlxx3
   ];
 
-  NIX_CFLAGS_COMPILE = "-Wno-incompatible-pointer-types";
+  env.NIX_CFLAGS_COMPILE = "-Wno-incompatible-pointer-types";
 
   buildFlags = [ "gtk3" ];