diff --git a/13_rpn_calculator/rpn_calculator_spec.rb b/13_rpn_calculator/rpn_calculator_spec.rb
index f936f8650..ef48b63e5 100644
--- a/13_rpn_calculator/rpn_calculator_spec.rb
+++ b/13_rpn_calculator/rpn_calculator_spec.rb
@@ -29,8 +29,8 @@
 
   it "adds and subtracts" do
     calculator.push(2)
-    calculator.push(3)
     calculator.push(4)
+    calculator.push(3)
     calculator.minus
     calculator.value.should == -1
     calculator.plus
@@ -39,12 +39,12 @@
 
   it "multiplies and divides" do
     calculator.push(2)
-    calculator.push(3)
     calculator.push(4)
+    calculator.push(3)
     calculator.divide
     calculator.value.should == 0.75
     calculator.times
-    calculator.value.should == 1.5
+    calculator.value.should == 0.375
   end
 
   it "resolves operator precedence unambiguously" do