diff --git a/lib/erb.gemspec b/lib/erb/erb.gemspec
similarity index 97%
rename from lib/erb.gemspec
rename to lib/erb/erb.gemspec
index 0a59abad53..94edc68682 100644
--- a/lib/erb.gemspec
+++ b/lib/erb/erb.gemspec
@@ -2,7 +2,7 @@ begin
   require_relative 'lib/erb/version'
 rescue LoadError
   # for Ruby core repository
-  require_relative 'erb/version'
+  require_relative 'version'
 end
 
 Gem::Specification.new do |spec|