diff --git a/code_samples/max_opened_projects/src/main/java/org/intellij/sdk/maxOpenProjects/ProjectCloseListener.java b/code_samples/max_opened_projects/src/main/java/org/intellij/sdk/maxOpenProjects/ProjectCloseListener.java
index f5907233b73..001afd1a8c7 100644
--- a/code_samples/max_opened_projects/src/main/java/org/intellij/sdk/maxOpenProjects/ProjectCloseListener.java
+++ b/code_samples/max_opened_projects/src/main/java/org/intellij/sdk/maxOpenProjects/ProjectCloseListener.java
@@ -8,9 +8,9 @@
 import org.jetbrains.annotations.NotNull;
 
 /**
- * Listener to detect project close.
+ * Listener to detect project closing.
  */
-public class ProjectCloseListener implements ProjectManagerListener {
+final class ProjectCloseListener implements ProjectManagerListener {
 
   @Override
   public void projectClosed(@NotNull Project project) {