1 files changed, 2 insertions, 1 deletions
diff --git a/src/mbgl/annotation/fill_annotation_impl.cpp b/src/mbgl/annotation/fill_annotation_impl.cpp
index 9d3e12e004..7ac1932f32 100644
--- a/src/mbgl/annotation/fill_annotation_impl.cpp
+++ b/src/mbgl/annotation/fill_annotation_impl.cpp
@@ -21,7 +21,8 @@ void FillAnnotationImpl::updateStyle(Style::Impl& style) const {
         layer = style.addLayer(std::move(newLayer), AnnotationManager::PointLayerID);
     }
 
-    auto* fillLayer = layer->as<FillLayer>();
+    assert(layer->getType() == LayerType::Fill);
+    auto* fillLayer = static_cast<FillLayer*>(layer);
     fillLayer->setFillOpacity(annotation.opacity);
     fillLayer->setFillColor(annotation.color);
     fillLayer->setFillOutlineColor(annotation.outlineColor);