1 files changed, 3 insertions, 0 deletions
diff --git a/platform/default/mbgl/gl/headless_frontend.hpp b/platform/default/mbgl/gl/headless_frontend.hpp
index 33503bc13b..4d1116904e 100644
--- a/platform/default/mbgl/gl/headless_frontend.hpp
+++ b/platform/default/mbgl/gl/headless_frontend.hpp
@@ -14,6 +14,7 @@ class Scheduler;
 class Renderer;
 class RendererBackend;
 class Map;
+class TransformState;
 
 class HeadlessFrontend : public RendererFrontend {
 public:
@@ -34,6 +35,8 @@ public:
     PremultipliedImage readStillImage();
     PremultipliedImage render(Map&);
 
+    optional<TransformState> getTransformState() const;
+
 private:
     Size size;
     float pixelRatio;