diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index 92dfb844db7..0ec05767957 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -127,7 +127,7 @@ module ActiveRecord
 
         with_connection do |conn|
           conn.tables.each { |table| @tables[table] = true }
-          @tables[name] = !@tables.key?(name) && conn.table_exists?(name)
+          @tables[name] = conn.table_exists?(name) if !@tables.key?(name)
         end
 
         @tables[name]