1 files changed, 7 insertions, 2 deletions
diff --git a/src/mbgl/renderer/bucket.hpp b/src/mbgl/renderer/bucket.hpp
index 4bdb766a7c..eb02f32ebc 100644
--- a/src/mbgl/renderer/bucket.hpp
+++ b/src/mbgl/renderer/bucket.hpp
@@ -5,6 +5,8 @@
 #include <mbgl/util/noncopyable.hpp>
 #include <mbgl/util/mat4.hpp>
 
+#include <atomic>
+
 #define BUFFER_OFFSET(i) ((char*)nullptr + (i))
 
 namespace mbgl {
@@ -12,9 +14,12 @@ namespace mbgl {
 class Painter;
 class StyleLayer;
 class TileID;
+class CollisionTile;
 
 class Bucket : private util::noncopyable {
 public:
+    Bucket() : uploaded(false) {}
+    
     // As long as this bucket has a Prepare render pass, this function is getting called. Typically,
     // this only happens once when the bucket is being rendered for the first time.
     virtual void upload() = 0;
@@ -29,11 +34,11 @@ public:
         return !uploaded;
     }
 
-    virtual void placeFeatures() {}
+    virtual void placeFeatures(CollisionTile&) {}
     virtual void swapRenderData() {}
 
 protected:
-    bool uploaded = false;
+    std::atomic<bool> uploaded;
 
 };