diff --git a/spec/controllers/concerns/api/error_handling_spec.rb b/spec/controllers/concerns/api/error_handling_spec.rb
index bbcfd21ced0..102891d2ee7 100644
--- a/spec/controllers/concerns/api/error_handling_spec.rb
+++ b/spec/controllers/concerns/api/error_handling_spec.rb
@@ -19,20 +19,20 @@ describe Api::ErrorHandling do
     end
 
     {
-      ActiveRecord::RecordInvalid => { code: 422 },
-      ActiveRecord::RecordNotFound => { code: 404 },
-      ActiveRecord::RecordNotUnique => { code: 422 },
-      Date::Error => { code: 422 },
-      HTTP::Error => { code: 503 },
-      Mastodon::InvalidParameterError => { code: 400 },
-      Mastodon::NotPermittedError => { code: 403 },
-      Mastodon::RaceConditionError => { code: 503 },
-      Mastodon::RateLimitExceededError => { code: 429 },
-      Mastodon::UnexpectedResponseError => { code: 503 },
-      Mastodon::ValidationError => { code: 422 },
-      OpenSSL::SSL::SSLError => { code: 503 },
-      Seahorse::Client::NetworkingError => { code: 503 },
-      Stoplight::Error::RedLight => { code: 503 },
+      ActiveRecord::RecordInvalid => { code: 422, message: // },
+      ActiveRecord::RecordNotFound => { code: 404, message: // },
+      ActiveRecord::RecordNotUnique => { code: 422, message: // },
+      Date::Error => { code: 422, message: // },
+      HTTP::Error => { code: 503, message: // },
+      Mastodon::InvalidParameterError => { code: 400, message: // },
+      Mastodon::NotPermittedError => { code: 403, message: // },
+      Mastodon::RaceConditionError => { code: 503, message: // },
+      Mastodon::RateLimitExceededError => { code: 429, message: // },
+      Mastodon::UnexpectedResponseError => { code: 503, message: // },
+      Mastodon::ValidationError => { code: 422, message: // },
+      OpenSSL::SSL::SSLError => { code: 503, message: // },
+      Seahorse::Client::NetworkingError => { code: 503, message: // },
+      Stoplight::Error::RedLight => { code: 503, message: // },
     }.each do |error, options|
       it "Handles error class of #{error}" do
         allow(FakeService)
@@ -45,6 +45,10 @@ describe Api::ErrorHandling do
           .to have_http_status(options[:code])
         expect(FakeService)
           .to have_received(:new)
+        expect(body_as_json)
+          .to include(
+            error: match(options[:message])
+          )
       end
     end
   end