1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
index a7a12faac2..7489e88eef 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
@@ -33,8 +33,9 @@ module ActiveRecord
         when BigDecimal then value.to_s('F')
         when Numeric    then value.to_s
         when Date, Time then "'#{quoted_date(value)}'"
+        when Symbol     then "'#{quote_string(value.to_s)}'"
         else
-          "'#{quote_string(value.to_s)}'"
+          "'#{quote_string(value.to_yaml)}'"
         end
       end