diff --git a/.gitignore b/.gitignore
index c03f402b..868a47a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ target
 *.out.png
 /.idea
 /node_modules
+/generated
diff --git a/Cargo.toml b/Cargo.toml
index 8172c66c..8d9a825e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -104,7 +104,7 @@ panic = "abort"
 [package.metadata.deb]
 assets = [
     ["target/release/oxipng", "usr/bin/", "755"],
-    ["target/assets/oxipng.1", "usr/share/man/man1/", "644"],
+    ["generated/assets/oxipng.1", "usr/share/man/man1/", "644"],
     ["README.md", "usr/share/doc/oxipng/", "644"],
     ["CHANGELOG.md", "usr/share/doc/oxipng/", "644"],
 ]
diff --git a/build.rs b/build.rs
index 4063d01d..91cd1b6d 100644
--- a/build.rs
+++ b/build.rs
@@ -1,5 +1,11 @@
+use std::{
+    env,
+    fs::File,
+    io::{BufWriter, Error},
+    path::Path,
+};
+
 use clap_mangen::Man;
-use std::{env, fs::File, io::Error, path::Path};
 
 include!("src/cli.rs");
 
@@ -7,7 +13,7 @@ fn build_manpages(outdir: &Path) -> Result<(), Error> {
     let app = build_command();
 
     let file = Path::new(&outdir).join("oxipng.1");
-    let mut file = File::create(file)?;
+    let mut file = BufWriter::new(File::create(file)?);
 
     Man::new(app).render(&mut file)?;
 
@@ -16,17 +22,10 @@ fn build_manpages(outdir: &Path) -> Result<(), Error> {
 
 fn main() -> Result<(), Error> {
     println!("cargo:rerun-if-changed=src/cli.rs");
-    println!("cargo:rerun-if-changed=man");
+    println!("cargo:rerun-if-changed=src/display_chunks.rs");
 
-    let outdir = match env::var_os("OUT_DIR") {
-        None => return Ok(()),
-        Some(outdir) => outdir,
-    };
-
-    // Create `target/assets/` folder.
-    let out_path = PathBuf::from(outdir);
-    let mut path = out_path.ancestors().nth(4).unwrap().to_owned();
-    path.push("assets");
+    // Create `generated/assets/` folder.
+    let path = env::current_dir()?.join("generated").join("assets");
     std::fs::create_dir_all(&path).unwrap();
 
     build_manpages(&path)?;