diff --git a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
index 9dee031..7dc753c 100644
--- a/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
+++ b/common/src/main/kotlin/fr/username404/snowygui/gui/feature/ButtonImpl.kt
@@ -13,7 +13,7 @@ import fr.username404.snowygui.gui.feature.ButtonInfo.Companion.Type
 import kotlin.reflect.full.findAnnotation
 import kotlin.reflect.jvm.isAccessible
 
-abstract class ButtonImpl: ColoredElement(0.0, 0.0, 73, 8, opacity = 0.60F) {
+sealed class ButtonImpl: ColoredElement(0.0, 0.0, 73, 8, opacity = 0.60F) {
     companion object {
         var done: Boolean = false; private set
         fun initialize() {