tests: load DbgDestroyMsgCallback function pointer
diff --git a/tests/vkrenderframework.h b/tests/vkrenderframework.h
index e761001..58f229f 100644
--- a/tests/vkrenderframework.h
+++ b/tests/vkrenderframework.h
@@ -129,6 +129,7 @@
     VkDepthStencilObj                  *m_depthStencil;
     VkMemoryRefManager                  m_mem_ref_mgr;
     PFN_vkDbgCreateMsgCallback          m_dbgCreateMsgCallback;
+    PFN_vkDbgDestroyMsgCallback         m_dbgDestroyMsgCallback;
     VkDbgMsgCallback                    m_globalMsgCallback;
     VkDbgMsgCallback                    m_devMsgCallback;