diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ColorPicker.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ColorPicker.kt
index af60b2190..df4bab6d9 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ColorPicker.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/client/screen/panels/ColorPicker.kt
@@ -500,7 +500,7 @@ open class ColorPickerPanel<out S : Screen>(
 	y: Float = 0f,
 	width: Float = 164f,
 	height: Float = 118f,
-	val callback: Consumer<RGBAColor>? = null
+	var callback: Consumer<RGBAColor>? = null
 ) : EditablePanel<S>(screen, parent, x, y, width, height) {
 	open fun onColorChanged(color: RGBAColor) {
 		callback?.accept(color)