diff --git a/pkgs/by-name/io/ioq3-scion/package.nix b/pkgs/by-name/io/ioq3-scion/package.nix
index b4960e84e9fc..c054f1cc3b50 100644
--- a/pkgs/by-name/io/ioq3-scion/package.nix
+++ b/pkgs/by-name/io/ioq3-scion/package.nix
@@ -18,8 +18,11 @@ ioquake3.overrideAttrs (old: {
     rev = "a21c257b9ad1d897f6c31883511c3f422317aa0a";
     hash = "sha256-CBy3Av/mkFojXr0tAXPRWKwLeQJPebazXQ4wzKEmx0I=";
   };
+  # gcc15
+  env.NIX_CFLAGS_COMPILE = "-std=gnu17";
   meta = {
     description = "ioquake3 with support for path aware networking";
     maintainers = with lib.maintainers; [ matthewcroughan ];
+    platforms = lib.platforms.linux;
   };
 })