diff --git a/annotation-processors/src/main/java/com/itsaky/androidide/annotations/processor/ViewAdapterAnnotationProcessor.kt b/annotation-processors/src/main/java/com/itsaky/androidide/annotations/processor/ViewAdapterAnnotationProcessor.kt
index 62f7056a2..d58e1d53c 100644
--- a/annotation-processors/src/main/java/com/itsaky/androidide/annotations/processor/ViewAdapterAnnotationProcessor.kt
+++ b/annotation-processors/src/main/java/com/itsaky/androidide/annotations/processor/ViewAdapterAnnotationProcessor.kt
@@ -28,6 +28,7 @@ import javax.lang.model.element.Element
 import javax.lang.model.element.ElementKind.CLASS
 import javax.lang.model.element.ElementKind.PACKAGE
 import javax.lang.model.element.ExecutableElement
+import javax.lang.model.element.Modifier.FINAL
 import javax.lang.model.element.TypeElement
 import javax.tools.Diagnostic.Kind.ERROR
 
@@ -55,7 +56,7 @@ class ViewAdapterAnnotationProcessor : AbstractProcessor() {
     if (roundEnv.processingOver()) {
       return true
     }
-    
+
     generator.init(processingEnv)
 
     roundEnv.getElementsAnnotatedWith(ViewAdapter::class.java).forEach {
@@ -134,6 +135,11 @@ class ViewAdapterAnnotationProcessor : AbstractProcessor() {
       )
     }
 
+    if (element.modifiers.contains(FINAL)) {
+      processingEnv.messager.printMessage(ERROR, "${element.qualifiedName} cannot be final")
+      return
+    }
+
     generator.addViewAdapter(processingEnv, element)
   }
 }
diff --git a/tests/test-home/.androidide/init/model.jar b/tests/test-home/.androidide/init/model.jar
index 44b540b33..98d01d5f5 100644
Binary files a/tests/test-home/.androidide/init/model.jar and b/tests/test-home/.androidide/init/model.jar differ
diff --git a/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/HorizontalScrollViewAdapter.kt b/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/HorizontalScrollViewAdapter.kt
index 00c675bcb..0485c5c9b 100644
--- a/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/HorizontalScrollViewAdapter.kt
+++ b/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/HorizontalScrollViewAdapter.kt
@@ -32,7 +32,7 @@ import com.itsaky.androidide.inflater.models.UiWidget
  */
 @com.itsaky.androidide.annotations.inflater.ViewAdapter(HorizontalScrollView::class)
 @IncludeInDesigner(group = LAYOUTS)
-class HorizontalScrollViewAdapter<T : HorizontalScrollView> : FrameLayoutAdapter<T>() {
+open class HorizontalScrollViewAdapter<T : HorizontalScrollView> : FrameLayoutAdapter<T>() {
 
   override fun createAttrHandlers(create: (String, AttributeHandlerScope<T>.() -> Unit) -> Unit) {
     super.createAttrHandlers(create)
diff --git a/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/ScrollViewAdapter.kt b/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/ScrollViewAdapter.kt
index fe653257c..0cd97c825 100644
--- a/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/ScrollViewAdapter.kt
+++ b/xml-inflater/src/main/java/com/itsaky/androidide/inflater/internal/adapters/ScrollViewAdapter.kt
@@ -32,7 +32,7 @@ import com.itsaky.androidide.inflater.models.UiWidget
  */
 @com.itsaky.androidide.annotations.inflater.ViewAdapter(forView = ScrollView::class)
 @IncludeInDesigner(group = LAYOUTS)
-class ScrollViewAdapter<T : ScrollView> : FrameLayoutAdapter<T>() {
+open class ScrollViewAdapter<T : ScrollView> : FrameLayoutAdapter<T>() {
   
   override fun createAttrHandlers(create: (String, AttributeHandlerScope<T>.() -> Unit) -> Unit) {
     super.createAttrHandlers(create)