Index: src/Virtual/ExpandCasts.cc
===================================================================
--- src/Virtual/ExpandCasts.cc	(revision 3830c84601a67ed9f3f3ed3c53cdc89c7cbd925c)
+++ src/Virtual/ExpandCasts.cc	(revision 6c121eed6f4c0f793dca1e69b669f683bcfdfe3e)
@@ -20,4 +20,5 @@
 #include <string>                  // for string, allocator, operator==, ope...
 
+#include "AST/Copy.hpp"
 #include "AST/Decl.hpp"
 #include "AST/Expr.hpp"