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-rw-r--r--lib/mastodon/domains_cli.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/mastodon/domains_cli.rb b/lib/mastodon/domains_cli.rb
index a7c78c4a7..77364ffbb 100644
--- a/lib/mastodon/domains_cli.rb
+++ b/lib/mastodon/domains_cli.rb
@@ -97,7 +97,7 @@ module Mastodon
       failed          = Concurrent::AtomicFixnum.new(0)
       start_at        = Time.now.to_f
       seed            = start ? [start] : Instance.pluck(:domain)
-      blocked_domains = Regexp.new('\\.?' + DomainBlock.where(severity: 1).pluck(:domain).join('|') + '$')
+      blocked_domains = /\.?(#{DomainBlock.where(severity: 1).pluck(:domain).map { |domain| Regexp.escape(domain) }.join('|')})$/
       progress        = create_progress_bar
 
       pool = Concurrent::ThreadPoolExecutor.new(min_threads: 0, max_threads: options[:concurrency], idletime: 10, auto_terminate: true, max_queue: 0)