diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index c2fab3ba35212de328774c6a6a585186f45e4ff2..521531be03460d21dc47296c3e61e172e630b579 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -234,6 +234,9 @@ struct _qemuDomainObjPrivate {
     size_t masterKeyLen;
 };
 
+# define QEMU_DOMAIN_PRIVATE(vm)	\
+    ((qemuDomainObjPrivatePtr) (vm)->privateData)
+
 /* Type of domain secret */
 typedef enum {
     VIR_DOMAIN_SECRET_INFO_TYPE_PLAIN = 0,