1 files changed, 1 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
index ebb4a1523f..c74f4e8fa5 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
@@ -24,7 +24,7 @@ module ActiveRecord
       end
 
       def set_state(state)
-        if !VALID_STATES.include?(state)
+        unless VALID_STATES.include?(state)
           raise ArgumentError, "Invalid transaction state: #{state}"
         end
         @state = state