diff --git a/pkgs/games/rigsofrods/default.nix b/pkgs/games/rigsofrods/default.nix
index 480481afe9a..4fa89798306 100644
--- a/pkgs/games/rigsofrods/default.nix
+++ b/pkgs/games/rigsofrods/default.nix
@@ -27,6 +27,7 @@ stdenv.mkDerivation rec {
     "-DROR_USE_PAGED=TRUE"
     "-DROR_USE_ANGELSCRIPT=TRUE"
     "-DROR_USE_SOCKETW=TRUE"
+    "-DCMAKE_BUILD_TYPE=Release"
   ];
 
   installPhase = ''