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-rw-r--r--lib/bundler/shared_helpers.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/bundler/shared_helpers.rb b/lib/bundler/shared_helpers.rb
index 165982ad0a..5196243949 100644
--- a/lib/bundler/shared_helpers.rb
+++ b/lib/bundler/shared_helpers.rb
@@ -312,7 +312,7 @@ module Bundler
def set_rubyopt
rubyopt = [ENV["RUBYOPT"]].compact
setup_require = "-r#{File.expand_path("setup", __dir__)}"
- return if !rubyopt.empty? && rubyopt.first =~ /#{setup_require}/
+ return if !rubyopt.empty? && rubyopt.first =~ /#{Regexp.escape(setup_require)}/
rubyopt.unshift setup_require
Bundler::SharedHelpers.set_env "RUBYOPT", rubyopt.join(" ")
end