diff --git a/mockito/src/test/java/org/baeldung/mockito/MockitoMockTest.java b/mockito/src/test/java/org/baeldung/mockito/MockitoMockTest.java
index 24f1f991de..5a1996fa97 100644
--- a/mockito/src/test/java/org/baeldung/mockito/MockitoMockTest.java
+++ b/mockito/src/test/java/org/baeldung/mockito/MockitoMockTest.java
@@ -15,7 +15,8 @@ import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
 public class MockitoMockTest {
-    static class CustomAnswer implements Answer<Boolean> {
+
+    private static class CustomAnswer implements Answer<Boolean> {
         @Override
         public Boolean answer(InvocationOnMock invocation) throws Throwable {
             return false;