diff --git a/app/controllers/concerns/signature_verification.rb b/app/controllers/concerns/signature_verification.rb
index 89dc828f45537ac7450e41f67313469cd056e0ad..4da068aed848e21afd44176ff2b02784d99fb3f6 100644
--- a/app/controllers/concerns/signature_verification.rb
+++ b/app/controllers/concerns/signature_verification.rb
@@ -98,7 +98,7 @@ module SignatureVerification
     fail_with! e.message
   rescue HTTP::Error, OpenSSL::SSL::SSLError => e
     fail_with! "Failed to fetch remote data: #{e.message}"
-  rescue Mastodon::UnexptectedResponseError
+  rescue Mastodon::UnexpectedResponseError
     fail_with! 'Failed to fetch remote data (got unexpected reply from server)'
   rescue Stoplight::Error::RedLight
     fail_with! 'Fetching attempt skipped because of recent connection failure'