--- a/hotspot/src/os/aix/vm/os_aix.cpp	Mon May 12 09:47:57 2014 -0400
+++ b/hotspot/src/os/aix/vm/os_aix.cpp	Mon May 12 15:50:20 2014 +0000
@@ -1871,7 +1871,7 @@
 // properties.
 
 // ShmBkBlock: base class for all blocks in the shared memory bookkeeping
-class ShmBkBlock {
+class ShmBkBlock : public CHeapObj<mtInternal> {
 
   ShmBkBlock* _next;