diff --git a/app/lib/scope_transformer.rb b/app/lib/scope_transformer.rb
index fdfc6cf1317..adcb711f8ad 100644
--- a/app/lib/scope_transformer.rb
+++ b/app/lib/scope_transformer.rb
@@ -28,7 +28,7 @@ class ScopeTransformer < Parslet::Transform
     def merge!(other_scope)
       raise ArgumentError unless other_scope.namespace == namespace && other_scope.term == term
 
-      @access.concat(other_scope.instance_variable_get('@access'))
+      @access.concat(other_scope.instance_variable_get(:@access))
       @access.uniq!
       @access.sort!
 
diff --git a/lib/mastodon/statuses_cli.rb b/lib/mastodon/statuses_cli.rb
index d4c2e6cf2a7..baab83e297a 100644
--- a/lib/mastodon/statuses_cli.rb
+++ b/lib/mastodon/statuses_cli.rb
@@ -93,7 +93,7 @@ module Mastodon
         c.table_name = 'statuses_to_be_deleted'
       end
 
-      Object.const_set('StatusToBeDeleted', klass)
+      Object.const_set(:StatusToBeDeleted, klass)
 
       scope     = StatusToBeDeleted
       processed = 0
@@ -175,7 +175,7 @@ module Mastodon
         c.table_name = 'conversations_to_be_deleted'
       end
 
-      Object.const_set('ConversationsToBeDeleted', klass)
+      Object.const_set(:ConversationsToBeDeleted, klass)
 
       scope     = ConversationsToBeDeleted
       processed = 0