diff --git a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
index dc4e5f0..6f7462b 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/twincolgrid/TwinColGrid.java
@@ -160,6 +160,8 @@ public enum Orientation {
 
   private boolean isFromClient = false;
 
+  private String layoutId;
+  
   private static <T> ListDataProvider<T> emptyDataProvider() {
     return DataProvider.ofCollection(new LinkedHashSet<>());
   }
@@ -311,6 +313,7 @@ public void setCaption(String captionText) {
     if (captionText != null) {
       if (captionLabel == null) {
         captionLabel = new Label();
+        captionLabel.setFor(layoutId);
         addComponentAsFirst(captionLabel);
       }
       captionLabel.setText(captionText);
@@ -387,6 +390,12 @@ private Component createContainerLayout() {
     throw new IllegalStateException();
   }
 
+  private String getLayoutId() {
+    return Optional.ofNullable(layoutId).orElseGet(()->{
+      return this.layoutId = "twincol-" + UUID.randomUUID();
+    });
+  }
+  
   private HorizontalLayout createHorizontalContainer(boolean reverse) {
     buttonContainer = getVerticalButtonContainer();
     HorizontalLayout hl;
@@ -395,6 +404,7 @@ private HorizontalLayout createHorizontalContainer(boolean reverse) {
     } else {
       hl = new HorizontalLayout(available.layout, buttonContainer, selection.layout);
     }
+    hl.setId(getLayoutId());
     hl.getElement().getStyle().set("min-height", "0px");
     hl.getElement().getStyle().set("flex", "1 1 0px");
     hl.setMargin(false);
@@ -410,6 +420,7 @@ private VerticalLayout createVerticalContainer(boolean reverse) {
     } else {
       vl = new VerticalLayout(available.layout, buttonContainer, selection.layout);
     }
+    vl.setId(getLayoutId());
     vl.getElement().getStyle().set("min-width", "0px");
     vl.getElement().getStyle().set("flex", "1 1 0px");
     vl.setMargin(false);