diff --git a/pkgs/by-name/gd/gdl/package.nix b/pkgs/by-name/gd/gdl/package.nix
index 69c8f5736820..7303307baa49 100644
--- a/pkgs/by-name/gd/gdl/package.nix
+++ b/pkgs/by-name/gd/gdl/package.nix
@@ -18,6 +18,11 @@ stdenv.mkDerivation rec {
     sha256 = "NkHU/WadHhgYrv88+f+3iH/Fw2eFC3jCjHdeukq2pVU=";
   };
 
+  env = lib.optionalAttrs stdenv.cc.isGNU {
+    # https://gitlab.gnome.org/Archive/gdl/-/issues/9
+    NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+  };
+
   nativeBuildInputs = [
     pkg-config
     intltool