diff --git a/Cargo.lock b/Cargo.lock
index 60496ff2ccd..a1534ecd913 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,6 +4,7 @@ version = "0.0.1"
 dependencies = [
  "diff 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "strings 0.0.1 (git+https://github.com/nrc/strings.rs.git)",
+ "toml 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -11,8 +12,21 @@ name = "diff"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "rustc-serialize"
+version = "0.3.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "strings"
 version = "0.0.1"
 source = "git+https://github.com/nrc/strings.rs.git#551331d01911b7e8da056a4a019eb367cfaf03bd"
 
+[[package]]
+name = "toml"
+version = "0.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rustc-serialize 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
diff --git a/Cargo.toml b/Cargo.toml
index a78a31d11c3..acf53b77e7c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,7 @@ description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/nick29581/rustfmt"
 readme = "README.md"
 license = "Apache-2.0/MIT"
+build = "build.rs"
 
 [dependencies.strings]
 strings = "0.0.1"
@@ -14,3 +15,4 @@ git = "https://github.com/nrc/strings.rs.git"
 
 [dev-dependencies]
 diff = "0.1.0"
+toml = "0.1.20"
diff --git a/build.rs b/build.rs
new file mode 100644
index 00000000000..ac27db56493
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,28 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Build script. Just copies default.toml from the src to the target dir.
+
+use std::env;
+use std::path::{Path, PathBuf};
+
+fn main() {
+    let in_file = Path::new("src/default.toml");
+
+    let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let profile = env::var("PROFILE").unwrap();
+    let mut out_file = PathBuf::new();
+    out_file.push(manifest_dir);
+    out_file.push("target");
+    out_file.push(profile);
+    out_file.push("default.toml");
+
+    std::fs::copy(in_file, out_file).unwrap();
+}
diff --git a/src/default.toml b/src/default.toml
new file mode 100644
index 00000000000..e049dfa59ba
--- /dev/null
+++ b/src/default.toml
@@ -0,0 +1,2 @@
+max-width = 100
+ideal-width = 80