2 files changed, 5 insertions, 0 deletions
diff --git a/lib/arel/visitors/dot.rb b/lib/arel/visitors/dot.rb
index abf28968cf..9ecb65eae1 100644
--- a/lib/arel/visitors/dot.rb
+++ b/lib/arel/visitors/dot.rb
@@ -98,6 +98,7 @@ module Arel
       alias :visit_Arel_SqlLiteral :visit_String
       alias :visit_Fixnum :visit_String
       alias :visit_Symbol :visit_String
+      alias :visit_Arel_Nodes_SqlLiteral :visit_String
 
       def visit_Hash o
         o.each_with_index do |pair, i|
diff --git a/lib/arel/visitors/join_sql.rb b/lib/arel/visitors/join_sql.rb
index 0353d687eb..bca15bbb0a 100644
--- a/lib/arel/visitors/join_sql.rb
+++ b/lib/arel/visitors/join_sql.rb
@@ -13,6 +13,10 @@ module Arel
         o.froms.grep(Nodes::Join).map { |x| visit x }.join ', '
       end
 
+      def visit_Arel_Nodes_StringJoin o
+        visit o.right
+      end
+
       def visit_Arel_Nodes_OuterJoin o
         "OUTER JOIN #{visit o.right} #{visit o.constraint}"
       end