diff --git a/flake.nix b/flake.nix
index e1e7f34..102fba0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,15 +10,17 @@
 				packages.default = pkgs.stdenv.mkDerivation {
 					pname = "cgen";
 					version = "0";
-					src = builtins.fetchGit {
-						url = ./.;
-						submodules = true;
-					};
+					src = ./.;
 					nativeBuildInputs = with pkgs; [
 						gcc14
 						tree-sitter
 						tinyxxd
 					];
+
+					installPhase = ''
+						mkdir -p $out/bin/
+						cp build/bin/cgen $out/bin/cgen
+					'';
 				};
 
 				devShells.default =
diff --git a/src/main.c b/src/main.c
index 0ed6d83..d65519f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -128,7 +128,7 @@ void gen_enum_strs() {
 
 int main(int argc, char **argv) {
 	if (argc != 2) {
-		printf("%s", USAGE);
+		printf("%s\n", USAGE);
 		exit(1);
 	}