--- old/src/hotspot/share/gc/parallel/psVirtualspace.hpp	2018-03-27 08:32:50.757544989 -0400
+++ new/src/hotspot/share/gc/parallel/psVirtualspace.hpp	2018-03-27 08:32:50.156489456 -0400
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_GC_PARALLEL_PSVIRTUALSPACE_HPP
 #define SHARE_VM_GC_PARALLEL_PSVIRTUALSPACE_HPP
 
+#include "memory/allocation.hpp"
 #include "memory/virtualspace.hpp"
 
 // VirtualSpace for the parallel scavenge collector.