diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/gui/CodeSelector.java b/src/main/java/com/puppycrawl/tools/checkstyle/gui/CodeSelector.java
index 5676262ba..1d4387ac9 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/gui/CodeSelector.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/gui/CodeSelector.java
@@ -23,6 +23,9 @@ import java.awt.Color;
 import java.util.List;
 import javax.swing.JTextArea;
 
+/**
+ * Helper class to select a code.
+ */
 public class CodeSelector
 {
     /** DetailAST node*/