diff --git a/include/sta/Scene.hh b/include/sta/Scene.hh
index 4807136f..2e2041d3 100644
--- a/include/sta/Scene.hh
+++ b/include/sta/Scene.hh
@@ -89,7 +89,7 @@ protected:
   std::string name_;
   size_t index_;
   Mode *mode_;
-  LibertySeq liberty_[MinMax::index_count];
+  std::array<LibertySeq, MinMax::index_count> liberty_;
   std::array<Parasitics*, MinMax::index_count> parasitics_;
 
   friend class Scenes;