diff --git a/ext/byebug/extconf.rb b/ext/byebug/extconf.rb
index <HASH>..<HASH> 100644
--- a/ext/byebug/extconf.rb
+++ b/ext/byebug/extconf.rb
@@ -1,8 +1,3 @@
-if RUBY_VERSION < '2.0'
-  STDERR.print("Ruby version is too old\n")
-  exit(1)
-end
-
 require 'mkmf'
 
 makefile_config = RbConfig::MAKEFILE_CONFIG
Remove unnecessary check

Ruby version is already enforced in the gemspec.