diff --git a/install.sh b/install.sh
index 9120c8f..f78f24a 100755
--- a/install.sh
+++ b/install.sh
@@ -241,7 +241,7 @@ print_install_completion_msg() {
 
 Dotfile installation complete.
 
-To install packages, run: \`./package_install.sh help\`
+To install packages, run: \`./package_install.py help\`
 To check additional options, run: \`./post_install.sh help\`
 END
 }
diff --git a/package_install.py b/package_install.py
index 589340c..708b745 100755
--- a/package_install.py
+++ b/package_install.py
@@ -469,7 +469,7 @@ def install_package(apt, package):
 
     install = subprocess.call(install_cmd)
 
-    return install.returncode == 0
+    return install == 0
 
 
 def install_packages(apt):