diff --git a/OpenChange/MAPIStoreDraftsMessage.m b/OpenChange/MAPIStoreDraftsMessage.m
index cd868684b..a78c3e568 100644
--- a/OpenChange/MAPIStoreDraftsMessage.m
+++ b/OpenChange/MAPIStoreDraftsMessage.m
@@ -40,6 +40,11 @@
 
 @implementation MAPIStoreDraftsMessage
 
+- (uint64_t) objectVersion
+{
+  return 0xffffffffffffffffLL;
+}
+
 - (int) getPrMessageFlags: (void **) data
                  inMemCtx: (TALLOC_CTX *) memCtx
 {