diff --git a/install-discord-linux.rb b/install-discord-linux.rb
index dda266d..cf6b749 100755
--- a/install-discord-linux.rb
+++ b/install-discord-linux.rb
@@ -170,7 +170,7 @@ class Installer
     file_contents = Net::HTTP.get(uri)
     output_file = "discord-#{version}.tar.gz"
     puts "download_installer: Output file will #{output_file}"
-    $CONFIG[:install_dir].chdir do 
+    Dir.chdir($CONFIG[:install_dir]) do 
       File.open(output_file, 'wb') do |file|
         file.write(file_contents)
       end
@@ -181,7 +181,7 @@ class Installer
   def install
     installer_file = "discord-#{self.remote_version}.tar.gz"
     puts "do_install: Extracting new installer"
-    $CONFIG[:install_dir].chdir do 
+    Dir.chdir($CONFIG[:install_dir]) do 
       File.open(installer_file, 'rb') do |file|
         Gem::Package.new("").extract_tar_gz(file, $CONFIG[:install_dir])
       end