diff --git a/pkgs/by-name/oh/oha/package.nix b/pkgs/by-name/oh/oha/package.nix
index 72e0880daf9b..05595b6c9a3c 100644
--- a/pkgs/by-name/oh/oha/package.nix
+++ b/pkgs/by-name/oh/oha/package.nix
@@ -22,6 +22,9 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   cargoHash = "sha256-M6wJy5X9JRM9tOOGT8b6YIUT0OakXQxjw17iuqaRT5s=";
 
+  CARGO_PROFILE_RELEASE_LTO = "fat";
+  CARGO_PROFILE_RELEASE_CODEGEN_UNITS = "1";
+
   nativeBuildInputs = lib.optionals stdenv.hostPlatform.isLinux [
     pkg-config
   ];