diff --git a/lib/rubygems/exceptions.rb b/lib/rubygems/exceptions.rb
index f0debb646f..20e4049e48 100644
--- a/lib/rubygems/exceptions.rb
+++ b/lib/rubygems/exceptions.rb
@@ -284,3 +284,4 @@ end
 # Backwards compatible typo'd exception class for early RubyGems 2.0.x
 
 Gem::UnsatisfiableDepedencyError = Gem::UnsatisfiableDependencyError # :nodoc:
+Gem.deprecate_constant :UnsatisfiableDepedencyError