diff --git a/lib/rubygems/uninstaller.rb b/lib/rubygems/uninstaller.rb
index 118899c0..1f21b1f3 100644
--- a/lib/rubygems/uninstaller.rb
+++ b/lib/rubygems/uninstaller.rb
@@ -12,6 +12,7 @@
 
 # Restores RubyGems
 Gem.post_uninstall do |uninstaller|
+  next unless uninstaller.spec.name == 'slimgems'
   site_lib = File.expand_path(File.join(File.dirname(__FILE__), '..'))
   old_lib = File.join(site_lib, 'rubygems-backup')
   if File.directory?(old_lib)