diff --git a/src/main/java/guru/springframework/Sum.java b/src/main/java/guru/springframework/Sum.java
index 69ce6317..74ffb446 100644
--- a/src/main/java/guru/springframework/Sum.java
+++ b/src/main/java/guru/springframework/Sum.java
@@ -4,16 +4,16 @@
  * Created by jt on 10/10/18.
  */
 public class Sum implements Expression {
-    Money augmend;
-    Money addmend;
+    Money augend;
+    Money addend;
 
-    public Sum(Money augmend, Money addmend) {
-        this.augmend = augmend;
-        this.addmend = addmend;
+    public Sum(Money augend, Money addend) {
+        this.augend = augend;
+        this.addend = addend;
     }
 
     public Money reduce(String to) {
-        int amount = augmend.amount + addmend.amount;
+        int amount = augend.amount + addend.amount;
         return new Money(amount, to);
     }
 }
diff --git a/src/test/java/guru/springframework/MoneyTest.java b/src/test/java/guru/springframework/MoneyTest.java
index 8f857015..c57e81a3 100644
--- a/src/test/java/guru/springframework/MoneyTest.java
+++ b/src/test/java/guru/springframework/MoneyTest.java
@@ -48,8 +48,8 @@ void testPlusReturnsSum() {
         Money five = Money.dollar(5);
         Expression result = five.plus(five);
         Sum sum = (Sum) result;
-        assertEquals(five, sum.augmend);
-        assertEquals(five, sum.addmend);
+        assertEquals(five, sum.augend);
+        assertEquals(five, sum.addend);
     }
 
     @Test