diff --git a/flake.nix b/flake.nix
index 44b67f8..ee84068 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,7 +31,7 @@
           mkdir -p output
 
           echo "Building Odin GA..."
-          odin build src -out:ga
+          odin build src -out:ga -o:speed
 
           echo "Running GA..."
           ./ga