diff --git a/lib/risc/register_value.rb b/lib/risc/register_value.rb
index 269d16bd..65dd71c4 100644
--- a/lib/risc/register_value.rb
+++ b/lib/risc/register_value.rb
@@ -192,7 +192,7 @@ module Risc
       right = right.to_reg() if(right.is_a?(RegisterSlot))
       ret = Risc.op( "operator #{operator}" , operator , self , right , result)
       compiler.add_code(ret) if compiler
-      ret
+      ret.result
     end
 
     # just capture the values in an intermediary object (RegisterSlot)
diff --git a/lib/slot_machine/macro/operator.rb b/lib/slot_machine/macro/operator.rb
index 3ca6025f..66eeb3b7 100644
--- a/lib/slot_machine/macro/operator.rb
+++ b/lib/slot_machine/macro/operator.rb
@@ -13,8 +13,8 @@ module SlotMachine
       builder.build do
         integer = message[:receiver].reduce_int(false)
         integer_reg = message[:arg1].reduce_int(false)
-        integer.op operator , integer_reg
-        integer_tmp[Parfait::Integer.integer_index] << integer
+        result = integer.op operator , integer_reg
+        integer_tmp[Parfait::Integer.integer_index] << result
         message[:return_value] << integer_tmp
       end
       return compiler
diff --git a/test/risc/test_register_value.rb b/test/risc/test_register_value.rb
index a759b858..f5ea672a 100644
--- a/test/risc/test_register_value.rb
+++ b/test/risc/test_register_value.rb
@@ -51,11 +51,15 @@ module Risc
       assert_equal @r0 , message.register
     end
     def test_operator
-      ret = @r0.op :<< , @r1
+      @r0.set_compiler( fake = SuperFakeCompiler.new)
+      result = @r0.op :<< , @r1
+      ret = fake.code
       assert_operator ret , :<< , :message , "id_" , "op_<<_"
     end
     def test_operator_slot
-      ret = @r0.op :<< , @r1[:type]
+      @r0.set_compiler( fake = SuperFakeCompiler.new)
+      result = @r0.op :<< , @r1[:type]
+      ret = fake.code
       assert_operator ret , :<< , :message , "id_.type" , "op_<<_"
     end
     def test_byte_to_reg
diff --git a/test/slot_machine/macro/test_operator.rb b/test/slot_machine/macro/test_operator.rb
index a564b55c..5c7a6ce6 100644
--- a/test/slot_machine/macro/test_operator.rb
+++ b/test/slot_machine/macro/test_operator.rb
@@ -41,7 +41,7 @@ module SlotMachine
         assert_slot_to_reg s + 3 ,:message , 9 , "message.arg1"
         assert_slot_to_reg s + 4 , "message.arg1" , 2 , "message.arg1.data_1"
         assert_operator s + 5 , :| , "message.receiver.data_1" , "message.arg1.data_1" , "op_|_"
-        assert_reg_to_slot s + 6 , "message.receiver.data_1"  , "id_factory_.next_object" , 2
+        assert_reg_to_slot s + 6 , "op_|_"  , "id_factory_.next_object" , 2
         assert_reg_to_slot s + 7 , "id_factory_.next_object"  , :message , 5
         assert_slot_to_reg s + 8 ,:message , 5 , "message.return_value"
         assert_reg_to_slot s + 9 , "message.return_value"  , :message , 5