diff --git a/spice/enums.h b/spice/enums.h
index 8c731e9..f192e43 100644
--- a/spice/enums.h
+++ b/spice/enums.h
@@ -389,6 +389,7 @@ enum {
     SPICE_MSG_DISCONNECTING,
     SPICE_MSG_NOTIFY,
     SPICE_MSG_LIST,
+    SPICE_MSG_BASE_LAST = 100,
 };
 
 enum {