1 files changed, 1 insertions, 1 deletions
diff --git a/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBase.java b/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBase.java
index 2b73408abc..3e8e4dccd6 100644
--- a/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBase.java
+++ b/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBase.java
@@ -31,7 +31,7 @@ import com.vaadin.ui.Flash;
 public abstract class DeclarativeTestBase<T extends Component>
         extends DeclarativeTestBaseBase<T> {
 
-    private static boolean debug = false;
+    private static final boolean debug = false;
 
     private final Map<Class<?>, EqualsAsserter<?>> comparators = new HashMap<>();
     private static final EqualsAsserter standardEqualsComparator = (EqualsAsserter<Object>) Assert::assertEquals;