diff --git a/Cargo.lock b/Cargo.lock
index 93bb5f09..79056046 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -999,6 +999,12 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "path-clean"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17359afc20d7ab31fdb42bb844c8b3bb1dabd7dcf7e68428492da7f16966fcef"
+
 [[package]]
 name = "pbkdf2"
 version = "0.11.0"
@@ -1729,6 +1735,7 @@ dependencies = [
  "lazy_static",
  "log",
  "parking_lot",
+ "path-clean",
  "predicates",
  "semver",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 2d78915d..3c8df396 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,6 +35,7 @@ toml = "0.7.3"
 ureq = { version = "2.6.2", features = ["json"] }
 walkdir = "2.3.2"
 which = "4.4.0"
+path-clean = "1.0.1"
 
 [dev-dependencies]
 assert_cmd = "2.0.8"
diff --git a/src/command/build.rs b/src/command/build.rs
index f23394ee..9960c96c 100644
--- a/src/command/build.rs
+++ b/src/command/build.rs
@@ -16,6 +16,7 @@ use anyhow::{anyhow, bail, Error, Result};
 use binary_install::Cache;
 use clap::Args;
 use log::info;
+use path_clean::PathClean;
 use std::fmt;
 use std::path::PathBuf;
 use std::str::FromStr;
@@ -217,7 +218,7 @@ impl Build {
         }
         let crate_path = get_crate_path(build_opts.path)?;
         let crate_data = manifest::CrateData::new(&crate_path, build_opts.out_name.clone())?;
-        let out_dir = crate_path.join(PathBuf::from(build_opts.out_dir));
+        let out_dir = crate_path.join(PathBuf::from(build_opts.out_dir)).clean();
 
         let dev = build_opts.dev || build_opts.debug;
         let profile = match (dev, build_opts.release, build_opts.profiling) {