diff --git a/src/cli.yml b/src/cli.yml
index c49415f..15c3152 100644
--- a/src/cli.yml
+++ b/src/cli.yml
@@ -18,6 +18,8 @@ args:
         long: build
         help: Build package from PKGBUILD in clean chroot environment.
         takes_value: false
+        conflicts_with:
+          - install-missing
     - test:
         short: t
         long: test
diff --git a/src/functions.rs b/src/functions.rs
index 62a52d2..134dc35 100644
--- a/src/functions.rs
+++ b/src/functions.rs
@@ -190,7 +190,15 @@ pub fn build_package_with_missing_deps(missing: &[&str]) {
     let chroot_blackarch = get_vars("chroot_blackarch");
     let devtools_nspawn = get_vars("nspawn");
     for missing in missing.iter() {
-        let copy_path: String = [&chroot_blackarch, "root/", &missing].concat();
+        let copy_path: String = [
+            &chroot_blackarch,
+            "root/",
+            &missing
+                .split("/")
+                .last()
+                .expect("Failed to gest package name."),
+        ]
+        .concat();
         println!("{}", &missing);
         println!("{}", &copy_path);
         Command::new("sudo")