diff --git a/test/rubygems/test_gem_commands_pristine_command.rb b/test/rubygems/test_gem_commands_pristine_command.rb
index 7c0109be2c..b12fba511d 100644
--- a/test/rubygems/test_gem_commands_pristine_command.rb
+++ b/test/rubygems/test_gem_commands_pristine_command.rb
@@ -5,6 +5,8 @@ class TestGemCommandsPristineCommand < Gem::TestCase
 
   def setup
     super
+    common_installer_setup
+
     @cmd = Gem::Commands::PristineCommand.new
   end
 
diff --git a/test/rubygems/test_gem_commands_uninstall_command.rb b/test/rubygems/test_gem_commands_uninstall_command.rb
index 2e32e397a6..8e90325f1f 100644
--- a/test/rubygems/test_gem_commands_uninstall_command.rb
+++ b/test/rubygems/test_gem_commands_uninstall_command.rb
@@ -5,6 +5,7 @@ class TestGemCommandsUninstallCommand < Gem::InstallerTestCase
 
   def setup
     super
+    common_installer_setup
 
     build_rake_in do
       use_ui @ui do