diff --git a/pkgs/games/osu-lazer/default.nix b/pkgs/games/osu-lazer/default.nix
index bb006abad57..268090a4e5d 100644
--- a/pkgs/games/osu-lazer/default.nix
+++ b/pkgs/games/osu-lazer/default.nix
@@ -31,11 +31,9 @@ buildDotnetModule rec {
 
   nativeBuildInputs = [ copyDesktopItems ];
 
-  preConfigure = ''
-    dotnetFlags+=(
-      --runtime linux-x64
-    )
-  '';
+  dotnetFlags = [
+    "--runtime linux-x64"
+  ];
 
   runtimeDeps = [
     ffmpeg