diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e2f5dd2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+result
\ No newline at end of file
diff --git a/default.nix b/default.nix
index 124c265..59e4e32 100644
--- a/default.nix
+++ b/default.nix
@@ -18,11 +18,12 @@ in pkgs.stdenv.mkDerivation {
 
   buildPhase = ''
     cp -rf $src/src .
+    mkdir out
     cd ./src && ./build.sh && cd ..
   '';
 
   installPhase = ''
     mkdir -p $out
-    cp -vrf book/* $out
+    cp -vrf out/* $out
   '';
 }