1 files changed, 1 insertions, 1 deletions
diff --git a/src/mbgl/text/placement.hpp b/src/mbgl/text/placement.hpp
index e2d634c54b..4dd9011da4 100644
--- a/src/mbgl/text/placement.hpp
+++ b/src/mbgl/text/placement.hpp
@@ -116,7 +116,7 @@ public:
               MapMode,
               style::TransitionOptions,
               const bool crossSourceCollisions,
-              optional<Immutable<Placement>> prevPlacement);
+              optional<Immutable<Placement>> prevPlacement = nullopt);
     void placeLayer(const RenderLayer&, const mat4&, bool showCollisionBoxes);
     void commit(TimePoint, const double zoom);
     void updateLayerBuckets(const RenderLayer&, const TransformState&, bool updateOpacities) const;