diff --git a/src/test/java/com/codacy/utils/MathTest.java b/src/test/java/com/codacy/utils/MathTest.java
index 3081f44..e9b9a36 100644
--- a/src/test/java/com/codacy/utils/MathTest.java
+++ b/src/test/java/com/codacy/utils/MathTest.java
@@ -13,9 +13,10 @@ public void shouldAddNumbers() {
     }
 
     // Uncomment this to have 100% coverage
-//    @Test
-//    public void shouldSubtractIfMagicNumber() {
-//        Math math = new Math(4);
-//        assertEquals(1, math.magicAdd(3, 4));
-//    }
+    @Test
+    public void shouldSubtractIfMagicNumber() {
+        Math math = new Math(4);
+        assertEquals(1, math.magicAdd(3, 4));
+        assertEquals(2, math.magicAdd(3, 4));
+    }
 }