1 files changed, 2 insertions, 2 deletions
diff --git a/lib/arel/nodes/insert_statement.rb b/lib/arel/nodes/insert_statement.rb
index 629e7a8513..a5e1a0bb9b 100644
--- a/lib/arel/nodes/insert_statement.rb
+++ b/lib/arel/nodes/insert_statement.rb
@@ -6,13 +6,13 @@ module Arel
       def initialize
         @relation = nil
         @columns  = []
-        @values   = []
+        @values   = nil
       end
 
       def initialize_copy other
         super
         @columns = @columns.clone
-        @values =  @values.clone
+        @values =  @values.clone if @values
       end
     end
   end